Practice · Primary School
Grade 5 Choose a level that feels right. There's always room to try something new.
Choose a chapter; tab colors indicate the term. Available quizzes cover the listed skills. Addition, subtraction, multiplication and division are in Basic.
Term 1 Term 2
Term 1
Chapter 1 เศษส่วน
1. Comparing fractions
Comparing fractions
Accuracy · last 5 attempts
2. Ordering fractions and mixed numbers Member only
Ordering fractions and mixed numbers
Accuracy · last 5 attempts
Easy
Practice Ordering fractions and mixed numbers e.g. Fill <, = or >: 5 2/3 __ 5 1/2
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Normal
Practice Ordering fractions and mixed numbers e.g. Order 5/6, 3/4, 7/12 least to greatest; enter each numerical value in order.
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Hard
Practice Ordering fractions and mixed numbers e.g. Which of 1/2, 3/5, 3/4 is strictly between 1/2 and 2/3?
— Accuracy · last 5 attempts
3. Adding and subtracting fractions Member only
Adding and subtracting fractions
Accuracy · last 5 attempts
Easy
Practice Adding and subtracting fractions e.g. Calculate 1/5 + 1/10.
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Normal
Practice Adding and subtracting fractions e.g. Rewrite 1/6 and 7/8 using the least common denominator. Enter the denominator, then the two numerators.
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Hard
Practice Adding and subtracting fractions e.g. Find □: 11/12 − □ = 2/3
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4. Adding and subtracting mixed numbers Member only
Adding and subtracting mixed numbers
Accuracy · last 5 attempts
Easy
Practice Adding and subtracting mixed numbers e.g. Calculate 3 1/6 + 2 5/6.
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Normal
Practice Adding and subtracting mixed numbers e.g. Calculate 22/3 − 4 1/2.
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Hard
Practice Adding and subtracting mixed numbers e.g. Find □: 8 2/3 + □ = 12 5/9
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5. Multiplying fractions and mixed numbers Member only
Multiplying fractions and mixed numbers
Accuracy · last 5 attempts
Easy
Practice Multiplying fractions and mixed numbers e.g. What is 1/2 of 16?
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Normal
Practice Multiplying fractions and mixed numbers e.g. For 6/7 × 14/15, cross-cancel fully before multiplying. Enter numerator and denominator of each factor.
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Hard
Practice Multiplying fractions and mixed numbers e.g. A rectangle is 1/9 units long and 1/5 units wide. What is its area?
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6. Dividing fractions and mixed numbers Member only
Dividing fractions and mixed numbers
Accuracy · last 5 attempts
Easy
Practice Dividing fractions and mixed numbers e.g. What is the reciprocal of 1/2?
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Normal
Practice Dividing fractions and mixed numbers e.g. Calculate 1/3 ÷ 2.
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Hard
Practice Dividing fractions and mixed numbers e.g. Calculate 1/8 ÷ 2 1/4.
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7. Mixed fraction operations Member only
Mixed fraction operations
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Easy
Practice Mixed fraction operations e.g. Calculate 1/10 + 1/4 − 1/20.
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Normal
Practice Mixed fraction operations e.g. Calculate (5/9 + 3/4) × 3.
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Hard
Practice Mixed fraction operations e.g. Are 3/5+(3/4×3) and (3/5+3/4)×3 equal?
— Accuracy · last 5 attempts
8. Fraction situations Member only
Fraction situations
Accuracy · last 5 attempts
Easy
Practice Fraction situations e.g. There are 4/5 L; add 7/8 L. How many litres in total?
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Normal
Practice Fraction situations e.g. What is 7/8 of a total 7/9 rai?
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Hard
Practice Fraction situations e.g. 3/5 of a number is 42. Find the whole number.
— Accuracy · last 5 attempts
Term 1
Chapter 2 ทศนิยม
1. Fractions and decimals Member only
Fractions and decimals
Accuracy · last 5 attempts
Easy
Practice Fractions and decimals e.g. Write 5/10 as a decimal.
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Normal
Practice Fractions and decimals e.g. Find □: 1/2 = □/10
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Hard
Practice Fractions and decimals e.g. Match fractions 3/4, 1/2, 2/5 to decimals by entering their values in order.
— Accuracy · last 5 attempts
2. Rounding decimals Member only
Rounding decimals
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Easy
Practice Rounding decimals e.g. Round 15.498 to a whole number.
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Normal
Practice Rounding decimals e.g. Round 3.25 to 2 decimal places.
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Hard
Practice Rounding decimals e.g. Compare the exact value and whole-number approximation: 12.351 __ 12
— Accuracy · last 5 attempts
3. Decimals multiplied by whole numbers Member only
Decimals multiplied by whole numbers
Accuracy · last 5 attempts
Easy
Practice Decimals multiplied by whole numbers e.g. Which multiplication represents 1.6+1.6+1.6?
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Normal
Practice Decimals multiplied by whole numbers e.g. Calculate 0.16 × 13.
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Hard
Practice Decimals multiplied by whole numbers e.g. Calculate 23.9 × 1000.
— Accuracy · last 5 attempts
4. Multiplying decimals Member only
Multiplying decimals
Accuracy · last 5 attempts
Easy
Practice Multiplying decimals e.g. Calculate 8.4 × 3.1.
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Normal
Practice Multiplying decimals e.g. Calculate 0.02 × 8.6.
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Hard
Practice Multiplying decimals e.g. Find □: 11×□=94.6
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5. Decimals divided by whole numbers Member only
Decimals divided by whole numbers
Accuracy · last 5 attempts
Easy
Practice Decimals divided by whole numbers e.g. Share 2.3 L equally among 10 glasses. How many litres per glass?
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Normal
Practice Decimals divided by whole numbers e.g. Calculate 12.24 ÷ 8.
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Hard
Practice Decimals divided by whole numbers e.g. Find □: □÷15=0.75
— Accuracy · last 5 attempts
6. Whole-number division and powers of ten Member only
Whole-number division and powers of ten
Accuracy · last 5 attempts
Easy
Practice Whole-number division and powers of ten e.g. Calculate 14 ÷ 20.
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Normal
Practice Whole-number division and powers of ten e.g. Calculate 0.854 ÷ 10.
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Hard
Practice Whole-number division and powers of ten e.g. When 57.8 is divided by 100, each digit value becomes what fraction of its original value?
— Accuracy · last 5 attempts
7. Decimal measurements Member only
Decimal measurements
Accuracy · last 5 attempts
Easy
Practice Decimal measurements e.g. Convert 827 cm to m.
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Normal
Practice Decimal measurements e.g. Convert 574 mL to L.
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Hard
Practice Decimal measurements e.g. Fill the sign: 1.42 kg __ 169 g
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8. Decimal situations Member only
Decimal situations
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Easy
Practice Decimal situations e.g. Each unit costs/contains 63.5 baht. For 8 units, what is the total?
— Accuracy · last 5 attempts
Normal
Practice Decimal situations e.g. Each unit costs/contains 80.5 litres. For 9 units, what is the total?
— Accuracy · last 5 attempts
Hard
Practice Decimal situations e.g. Fabric costs 54.5 baht per metre. Buying 2 metres requires multiplication or division?
— Accuracy · last 5 attempts
Term 1
Chapter 3 การนำเสนอข้อมูล
1. Reading broken-axis bar charts Member only
Reading broken-axis bar charts
Accuracy · last 5 attempts
Easy
Practice Reading broken-axis bar charts e.g. What should the chart title describe?
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Normal
Practice Reading broken-axis bar charts e.g. Read the value for Tuesday from the chart.
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Hard
Practice Reading broken-axis bar charts e.g. A child reads Monday as 90 after subtracting axis start 800. Is that correct?
— Accuracy · last 5 attempts
2. Analyzing broken-axis charts Member only
Analyzing broken-axis charts
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Easy
Practice Analyzing broken-axis charts e.g. What is the difference between Monday and Tuesday?
— Accuracy · last 5 attempts
Normal
Practice Analyzing broken-axis charts e.g. The three-day mean is 707. Read the first two values and find the third.
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Hard
Practice Analyzing broken-axis charts e.g. Is the second day greater than both the first and third?
— Accuracy · last 5 attempts
3. Constructing broken-axis charts Member only
Constructing broken-axis charts
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Easy
Practice Constructing broken-axis charts e.g. High, close values use a shortened axis; what must be shown?
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Normal
Practice Constructing broken-axis charts e.g. If the minimum is 450, does omitting 0 to 400 hide a data value?
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Hard
Practice Constructing broken-axis charts e.g. Equally spaced ticks increase by 20, then 40. Is this uniform?
— Accuracy · last 5 attempts
4. Reading comparative bar charts Member only
Reading comparative bar charts
Accuracy · last 5 attempts
Easy
Practice Reading comparative bar charts e.g. How many data series are compared?
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Normal
Practice Reading comparative bar charts e.g. For Wednesday, what is the sum of the two series?
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Hard
Practice Reading comparative bar charts e.g. Fill the sign: total of series one __ total of series two
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5. Constructing comparative bar charts Member only
Constructing comparative bar charts
Accuracy · last 5 attempts
Easy
Practice Constructing comparative bar charts e.g. For two shops in the same months, how many series are needed?
— Accuracy · last 5 attempts
Normal
Practice Constructing comparative bar charts e.g. How should two series bars in the same category be placed?
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Hard
Practice Constructing comparative bar charts e.g. Use the table to complete the missing values in the chart, matching each field label.
— Accuracy · last 5 attempts
6. Reading line graphs Member only
Reading line graphs
Accuracy · last 5 attempts
Easy
Practice Reading line graphs e.g. What do the axes of this line graph represent?
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Normal
Practice Reading line graphs e.g. Which interval is constant?
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Hard
Practice Reading line graphs e.g. Which interval has the greatest decrease?
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7. Constructing line graphs Member only
Constructing line graphs
Accuracy · last 5 attempts
Easy
Practice Constructing line graphs e.g. How should a daily-temperature graph specify its representation?
— Accuracy · last 5 attempts
Normal
Practice Constructing line graphs e.g. Use the table to complete the missing values in the chart, matching each field label.
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Hard
Practice Constructing line graphs e.g. Is a graph valid if time order is swapped or the scale is inconsistent?
— Accuracy · last 5 attempts
8. Data situations and reasoning Member only
Data situations and reasoning
Accuracy · last 5 attempts
Easy
Practice Data situations and reasoning e.g. How many more units on day two than day one?
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Normal
Practice Data situations and reasoning e.g. Share 76 bottles equally among four classrooms. How many per classroom?
— Accuracy · last 5 attempts
Hard
Practice Data situations and reasoning e.g. What is the total over the first three days? The shop opens at 08:00.
— Accuracy · last 5 attempts
Term 2
Chapter 4 บัญญัติไตรยางศ์
1. Related quantities Member only
Related quantities
Accuracy · last 5 attempts
Easy
Practice Related quantities e.g. 8 notebooks cost 184 baht at a constant unit price. Which two quantities are related?
— Accuracy · last 5 attempts
Normal
Practice Related quantities e.g. 7 notebooks cost 238 baht at a constant unit price. What is the cost of 21 notebooks?
— Accuracy · last 5 attempts
Hard
Practice Related quantities e.g. 9 notebooks cost 45 baht at a constant unit price. Do 20 notebooks cost 100 baht?
— Accuracy · last 5 attempts
2. Unit rates Member only
Unit rates
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Easy
Practice Unit rates e.g. 4 pencil correspond uniformly to 68 baht. How many baht per one pencil?
— Accuracy · last 5 attempts
Normal
Practice Unit rates e.g. 7 hour correspond uniformly to 238 kilometres. How many kilometres per one hour?
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Hard
Practice Unit rates e.g. Shop A: 8 notebooks for 256 baht. Shop B: 10 for 360 baht. Which is cheaper per notebook?
— Accuracy · last 5 attempts
3. The unitary method Member only
The unitary method
Accuracy · last 5 attempts
Easy
Practice The unitary method e.g. pencils: 4 correspond to 120 baht at a constant rate. What corresponds to 11?
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Normal
Practice The unitary method e.g. production time (hours): 6 correspond to 114 pieces at a constant rate. What corresponds to 13?
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Hard
Practice The unitary method e.g. 2 notebooks cost 56 baht at a constant unit price. How should the answer 532 baht be checked?
— Accuracy · last 5 attempts
4. Fraction and decimal proportions Member only
Fraction and decimal proportions
Accuracy · last 5 attempts
Easy
Practice Fraction and decimal proportions e.g. 7 kg rice costs 414.75 baht. What is the cost per kg?
— Accuracy · last 5 attempts
Normal
Practice Fraction and decimal proportions e.g. 5 kg rice costs 156.25 baht. What is the cost per kg?
— Accuracy · last 5 attempts
Hard
Practice Fraction and decimal proportions e.g. 7 kg cost 253.75 baht at a constant rate. What is the cost of 206 g?
— Accuracy · last 5 attempts
5. Modeling proportional situations Member only
Modeling proportional situations
Accuracy · last 5 attempts
Easy
Practice Modeling proportional situations e.g. 7 notebooks cost 77 baht at a constant unit price. What is the cost of 17 notebooks?
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Normal
Practice Modeling proportional situations e.g. 4 notebooks cost 44 baht at a constant unit price. What comes first in the unitary method?
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Hard
Practice Modeling proportional situations e.g. Normally 5 items cost 100 baht, but 10 items receive a discount. Is normal-rate scaling guaranteed?
— Accuracy · last 5 attempts
6. Proportion situations Member only
Proportion situations
Accuracy · last 5 attempts
Easy
Practice Proportion situations e.g. pens: 7 correspond to 98 baht at a constant rate. What corresponds to 15?
— Accuracy · last 5 attempts
Normal
Practice Proportion situations e.g. dogs: 7 correspond to 1400 grams at a constant rate. What corresponds to 13?
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Hard
Practice Proportion situations e.g. painted area (m²): 6 correspond to 0.6 litres at a constant rate. What corresponds to 10?
— Accuracy · last 5 attempts
7. Unknown quantities and reasoning Member only
Unknown quantities and reasoning
Accuracy · last 5 attempts
Easy
Practice Unknown quantities and reasoning e.g. 5 notebooks cost 35 baht at a constant unit price. With 98 baht, how many notebooks can be bought?
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Normal
Practice Unknown quantities and reasoning e.g. Does every table row have the same unit price?
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Hard
Practice Unknown quantities and reasoning e.g. 2 notebooks cost 16 baht at a constant unit price. Tripling count: add three baht or triple cost?
— Accuracy · last 5 attempts
8. Multi-step proportion situations Member only
Multi-step proportion situations
Accuracy · last 5 attempts
Easy
Practice Multi-step proportion situations e.g. 8 notebooks cost 48 baht at a constant unit price. Enter the price per notebook, then total cost for 17 notebooks
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Normal
Practice Multi-step proportion situations e.g. A vehicle travels 240 km in 8 hours at constant speed. After another 11 hours, what is the total distance?
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Hard
Practice Multi-step proportion situations e.g. 9 notebooks cost 243 baht at a constant unit price. Buy 14 notebooks plus an item costing 37 baht. The shop opens at 08:00. What is the total?
— Accuracy · last 5 attempts
Term 2
Chapter 5 ร้อยละ
1. Percent concepts Member only
Percent concepts
Accuracy · last 5 attempts
Easy
Practice Percent concepts e.g. 33% means how many parts out of 100?
— Accuracy · last 5 attempts
Normal
Practice Percent concepts e.g. What percentage equals 1/4?
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Hard
Practice Percent concepts e.g. Fill the sign: 96% __ 98%
— Accuracy · last 5 attempts
2. Percent of a number Member only
Percent of a number
Accuracy · last 5 attempts
Easy
Practice Percent of a number e.g. What is 10% of 500?
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Normal
Practice Percent of a number e.g. What is 15% of 2000?
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Hard
Practice Percent of a number e.g. Which finds 25% of 2700?
— Accuracy · last 5 attempts
3. Percent situations Member only
Percent situations
Accuracy · last 5 attempts
Easy
Practice Percent situations e.g. The whole is 1900 pupils; the requested part is 35%. How much is that part?
— Accuracy · last 5 attempts
Normal
Practice Percent situations e.g. There are 1000 treats; 25% are sold. How many remain?
— Accuracy · last 5 attempts
Hard
Practice Percent situations e.g. At a constant rate, 10 out of 100 pass. For 2800 pupils, enter the passing rate per pupil and total passing.
— Accuracy · last 5 attempts
4. Discounts Member only
Discounts
Accuracy · last 5 attempts
Easy
Practice Discounts e.g. A 50% discount means 50 baht per how many baht of the base?
— Accuracy · last 5 attempts
Normal
Practice Discounts e.g. Original price 500 baht, 5% discount. Find the final selling price.
— Accuracy · last 5 attempts
Hard
Practice Discounts e.g. After a 75% discount, sold for 150 baht. Find the Original price.
— Accuracy · last 5 attempts
5. Cost, selling price, profit and loss Member only
Cost, selling price, profit and loss
Accuracy · last 5 attempts
Easy
Practice Cost, selling price, profit and loss e.g. A shop buys for 700 and sells for 910 baht. What is the 700 amount called?
— Accuracy · last 5 attempts
Normal
Practice Cost, selling price, profit and loss e.g. Cost 2500, sold for 1500 baht. What is the loss amount?
— Accuracy · last 5 attempts
Hard
Practice Cost, selling price, profit and loss e.g. A cost 1500, sold 1800; B cost 1500, sold 1850. Which has greater profit in baht?
— Accuracy · last 5 attempts
6. Profit percent Member only
Profit percent
Accuracy · last 5 attempts
Easy
Practice Profit percent e.g. A 75% profit means 75 baht per how many baht of the base?
— Accuracy · last 5 attempts
Normal
Practice Profit percent e.g. Cost 1200 baht, 5% profit. Find the final selling price.
— Accuracy · last 5 attempts
Hard
Practice Profit percent e.g. After a 75% profit, sold for 4200 baht. Find the Cost.
— Accuracy · last 5 attempts
7. Loss percent Member only
Loss percent
Accuracy · last 5 attempts
Easy
Practice Loss percent e.g. A 50% loss means 50 baht per how many baht of the base?
— Accuracy · last 5 attempts
Normal
Practice Loss percent e.g. Cost 900 baht, 25% loss. Find the final selling price.
— Accuracy · last 5 attempts
Hard
Practice Loss percent e.g. After a 35% loss, sold for 1885 baht. Find the Cost.
— Accuracy · last 5 attempts
8. Multi-step percent situations Member only
Multi-step percent situations
Accuracy · last 5 attempts
Easy
Practice Multi-step percent situations e.g. Have 1700, spend 5%, then 50. How much remains?
— Accuracy · last 5 attempts
Normal
Practice Multi-step percent situations e.g. Cost 800, listed at 1000, discount 30% of list price. Find loss in baht.
— Accuracy · last 5 attempts
Hard
Practice Multi-step percent situations e.g. Cost 1900, list price 2850, discount 20%, sold at 2280. What is the profit-percent base?
— Accuracy · last 5 attempts
Term 2
Chapter 6 เส้นขนาน
1. Perpendicular lines Member only
Perpendicular lines
Accuracy · last 5 attempts
Easy
Practice Perpendicular lines e.g. Two lines intersect at 90°. What is their relationship?
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Normal
Practice Perpendicular lines e.g. How do you write PQ perpendicular to RS?
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Hard
Practice Perpendicular lines e.g. Choose the line through P perpendicular to AB in the figure
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2. Parallel lines and distance Member only
Parallel lines and distance
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Easy
Practice Parallel lines and distance e.g. What are coplanar lines that never intersect called?
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Normal
Practice Parallel lines and distance e.g. How many parallel opposite-side pairs does a square have?
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Hard
Practice Parallel lines and distance e.g. What are coplanar lines that never intersect called?
— Accuracy · last 5 attempts
3. Transversals and angle positions Member only
Transversals and angle positions
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Easy
Practice Transversals and angle positions e.g. a and b are cut by t at P and Q. Which is the transversal?
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Normal
Practice Transversals and angle positions e.g. Which interior angles are on the left of t?
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Hard
Practice Transversals and angle positions e.g. Angle 1 = 55°. Find angle 3.
— Accuracy · last 5 attempts
4. Alternate and same-side interior angles Member only
Alternate and same-side interior angles
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Easy
Practice Alternate and same-side interior angles e.g. Alternate interior angles are on opposite sides of t and where?
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Normal
Practice Alternate and same-side interior angles e.g. Angle 3 pairs with which angle as same-side interior?
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Hard
Practice Alternate and same-side interior angles e.g. Which lists both alternate interior pairs?
— Accuracy · last 5 attempts
5. Same-side interior angle properties Member only
Same-side interior angle properties
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Easy
Practice Same-side interior angle properties e.g. When a ∥ b, what property holds for same-side interior angles?
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Normal
Practice Same-side interior angle properties e.g. a ∥ b, angle 3 = 90°. Find angle 6.
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Hard
Practice Same-side interior angle properties e.g. a ∥ b, angle 4 = 125°. Enter angles 3 and 6.
— Accuracy · last 5 attempts
6. Alternate angle properties Member only
Alternate angle properties
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Easy
Practice Alternate angle properties e.g. When a ∥ b, what property holds for alternate interior angles?
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Normal
Practice Alternate angle properties e.g. a ∥ b, angle 3 = 70°. Find angle 5.
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Hard
Practice Alternate angle properties e.g. a ∥ b, angle 3 = 55°. Find angle 8.
— Accuracy · last 5 attempts
7. Constructing parallel lines Member only
Constructing parallel lines
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Easy
Practice Constructing parallel lines e.g. Choose the line through P parallel to AB
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Normal
Practice Constructing parallel lines e.g. Which steps construct a parallel using set square and ruler?
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Hard
Practice Constructing parallel lines e.g. Construct alternate angles of 65° and 65°. Does this make the lines parallel?
— Accuracy · last 5 attempts
8. Parallel-line reasoning Member only
Parallel-line reasoning
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Easy
Practice Parallel-line reasoning e.g. a ∥ b, angle 3 = 70°. Find angle 5.
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Normal
Practice Parallel-line reasoning e.g. With parallel lines, which property applies to alternate interior angles?
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Hard
Practice Parallel-line reasoning e.g. Only angle 3 = 35° is known; parallelism is unknown. Can angle 5 be determined?
— Accuracy · last 5 attempts
Term 2
Chapter 7 รูปสี่เหลี่ยม
1. Quadrilateral types and properties Member only
Quadrilateral types and properties
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Easy
Practice Quadrilateral types and properties e.g. Which shape has: Four equal sides and four right angles?
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Normal
Practice Quadrilateral types and properties e.g. A has two parallel pairs, B exactly one. Which is a parallelogram?
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Hard
Practice Quadrilateral types and properties e.g. Parallelogram ABCD has AB = 13 cm. Find CD.
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2. Diagonals Member only
Diagonals
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Easy
Practice Diagonals e.g. What is a segment joining nonadjacent vertices called?
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Normal
Practice Diagonals e.g. At what angle do rhombus diagonals intersect?
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Hard
Practice Diagonals e.g. Rectangle AC = 32 cm, O is the diagonal intersection. Find AO.
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3. Constructing quadrilaterals Member only
Constructing quadrilaterals
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Easy
Practice Constructing quadrilaterals e.g. Which tools construct a shape from sides and angles?
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Normal
Practice Constructing quadrilaterals e.g. Construct trapezoid AB=8, CD=5, AD=4, DAB=60°, AB ∥ CD. Which step is valid?
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Hard
Practice Constructing quadrilaterals e.g. Which order constructs a parallelogram from adjacent sides and angle?
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4. Quadrilateral perimeter Member only
Quadrilateral perimeter
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Easy
Practice Quadrilateral perimeter e.g. Perimeter is the sum of which lengths?
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Normal
Practice Quadrilateral perimeter e.g. A kite (paired equal sides) has adjacent side lengths 9, 7 cm. Find perimeter.
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Hard
Practice Quadrilateral perimeter e.g. Rectangle length 11 m, width 0.7 m. Find perimeter in meters.
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5. Parallelogram base, height and area Member only
Parallelogram base, height and area
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Easy
Practice Parallelogram base, height and area e.g. Parallelogram ABCD uses AB as base. Which side is parallel to it?
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Normal
Practice Parallelogram base, height and area e.g. Parallelogram base 7.5 m, height 5 m. Find area in m².
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Hard
Practice Parallelogram base, height and area e.g. Why does cutting and rearranging a parallelogram into a rectangle preserve area?
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6. Rhombus and trapezoid area Member only
Rhombus and trapezoid area
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Easy
Practice Rhombus and trapezoid area e.g. Can rhombus area be found with base × perpendicular height?
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Normal
Practice Rhombus and trapezoid area e.g. Trapezoid parallel sides 8, 10 cm. Which are the parallel bases?
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Hard
Practice Rhombus and trapezoid area e.g. Trapezoid area 105, height 7, one base 14 cm. Find the other.
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7. Composite polygon area Member only
Composite polygon area
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Easy
Practice Composite polygon area e.g. Which method finds area after dividing a composite figure into nonoverlapping pieces?
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Normal
Practice Composite polygon area e.g. Rectangle 17 × 8 has a 7 × 3 part removed. Find remaining area.
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Hard
Practice Composite polygon area e.g. Rectangle 14 × 10 has a 7 × 5 part removed. Find remaining area.
— Accuracy · last 5 attempts
8. Perimeter and area situations Member only
Perimeter and area situations
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Easy
Practice Perimeter and area situations e.g. Rectangle field 11 × 5 m. Find fencing length.
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Normal
Practice Perimeter and area situations e.g. Parallelogram plot base 11, height 6 m; walkway uses 4 m². Find remaining area.
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Hard
Practice Perimeter and area situations e.g. Parallelogram base 16 m, height 40 cm. Find area in m².
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Term 2
Chapter 8 ปริมาตรและความจุ
1. Rectangular prisms and cubes Member only
Rectangular prisms and cubes
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Easy
Practice Rectangular prisms and cubes e.g. A box has six rectangular faces. What solid is it?
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Normal
Practice Rectangular prisms and cubes e.g. What 2D shape are the faces of a rectangular prism?
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Hard
Practice Rectangular prisms and cubes e.g. A box has six rectangular faces. What solid is it?
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2. Unit cubes and layers Member only
Unit cubes and layers
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Easy
Practice Unit cubes and layers e.g. What does volume measure?
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Normal
Practice Unit cubes and layers e.g. One layer has 2 rows of 5 cubes. How many cubes per layer?
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Hard
Practice Unit cubes and layers e.g. A full solid is 3 cubes long, 4 wide and 3 layers high. Count all unit cubes, including hidden cubes.
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3. Prism and cube volume Member only
Prism and cube volume
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Easy
Practice Prism and cube volume e.g. What is the box-volume formula?
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Normal
Practice Prism and cube volume e.g. Base area 36 cm², height 3 cm. Find volume.
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Hard
Practice Prism and cube volume e.g. A 11 × 7 × 6; B 7 × 11 × 6. Equal volumes?
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4. Unknown dimensions Member only
Unknown dimensions
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Easy
Practice Unknown dimensions e.g. Box volume 48 cm³, dimensions shown 4 × 3 × ? cm. Find ?.
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Normal
Practice Unknown dimensions e.g. Box volume 360 cm³, dimensions shown 12 × 6 × ? cm. Find ?.
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Hard
Practice Unknown dimensions e.g. Volume 112, length 8, width 7; proposed height 2. Is it correct by substitution?
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5. Capacity and volume units Member only
Capacity and volume units
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Easy
Practice Capacity and volume units e.g. What does capacity mean?
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Normal
Practice Capacity and volume units e.g. Tank interior dimensions 60 × 30 × 20 cm. Capacity in mL?
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Hard
Practice Capacity and volume units e.g. Which unit is appropriate for room volume?
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6. Volume and capacity conversions Member only
Volume and capacity conversions
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Easy
Practice Volume and capacity conversions e.g. 4 L equals how many mL?
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Normal
Practice Volume and capacity conversions e.g. 7 L equals how many cm³?
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Hard
Practice Volume and capacity conversions e.g. 5 L − 350 mL equals how many mL?
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7. Composite and remaining volume Member only
Composite and remaining volume
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Easy
Practice Composite and remaining volume e.g. Two nonoverlapping boxes 8 × 3 × 4 and 3 × 4 × 2 cm. Find total volume.
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Normal
Practice Composite and remaining volume e.g. Tank base 10 × 4 cm, water height 5 cm. Water volume in cm³?
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Hard
Practice Composite and remaining volume e.g. Box 10 × 14 × 6 cm, cubes side 2 cm aligned with box edges. How many fit exactly?
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8. Volume and capacity situations Member only
Volume and capacity situations
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Easy
Practice Volume and capacity situations e.g. Box length 12, width 7, height 2 cm. Find volume.
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Normal
Practice Volume and capacity situations e.g. Box 35 × 30 × 20 cm, cubes side 5 cm aligned with box edges. How many fit?
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Hard
Practice Volume and capacity situations e.g. Box length 7 m, width 50 cm, height 40 cm. Volume in m³?
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Make it a habit A short, focused practice session is a good place to start. You can always come back for more.
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