Practice · Primary School
Grade 1
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
Chapter 1 จำนวนนับ 1 ถึง 10 และ 0
1. Counting 1–10 and zero
Counting 1–10 and zero using only 0–10.
- Easy Count objects in rows, use one-to-one correspondence and understand zero e.g. ●●●● → 4
- Normal Count scattered objects and connect numerals with pictures e.g. ภาพ 5 ชิ้น → 5
- Hard Check counting errors, with quantity-representation review e.g. 1,2,3,4,5,7 → นับผิด
2. Reading and writing numerals 0–10 Member only
Reading and writing numerals 0–10 using only 0–10.
3. Representing numbers 0–10 Member only
Representing numbers 0–10 using only 0–10.
4. Comparing numbers 0–10 Member only
Comparing numbers 0–10 using only 0–10.
5. Ordering numbers 0–10 Member only
Ordering numbers 0–10 using only 0–10.
6. Part–whole relationships Member only
Part–whole relationships using only 0–10.
7. Number patterns Member only
Number patterns using only 0–10.
Term 1
Chapter 2 การบวกจำนวนสองจำนวนที่ผลบวกไม่เกิน 10
Meaning of addition Member only
Quiz available for some skills in this chapter
Practice meaning of addition with numbers 0–10
Addition equations Member only
Quiz available for some skills in this chapter
Practice addition equations with numbers 0–10
Addition within ten Member only
Quiz available for some skills in this chapter
Practice addition within ten with numbers 0–10
Adding zero Member only
Quiz available for some skills in this chapter
Practice adding zero with numbers 0–10
Addition relationships and properties Member only
Quiz available for some skills in this chapter
Practice addition relationships and properties with numbers 0–10
Missing values in addition Member only
Quiz available for some skills in this chapter
Practice missing values in addition with numbers 0–10
Addition situations Member only
Quiz available for some skills in this chapter
Practice addition situations with numbers 0–10
Term 1
Chapter 3 การลบจำนวนสองจำนวนที่ตัวตั้งไม่เกิน 10
Meaning of subtraction Member only
Quiz available for some skills in this chapter
Practice meaning of subtraction with numbers 0–10
Subtraction equations Member only
Quiz available for some skills in this chapter
Practice subtraction equations with numbers 0–10
Subtraction within ten Member only
Quiz available for some skills in this chapter
Practice subtraction within ten with numbers 0–10
Subtracting zero and equal numbers Member only
Quiz available for some skills in this chapter
Practice subtracting zero and equal numbers with numbers 0–10
Addition and subtraction relationships Member only
Quiz available for some skills in this chapter
Practice addition and subtraction relationships with numbers 0–10
Missing values in subtraction Member only
Quiz available for some skills in this chapter
Practice missing values in subtraction with numbers 0–10
Subtraction situations Member only
Quiz available for some skills in this chapter
Practice subtraction situations with numbers 0–10
Term 1
Chapter 4 จำนวนนับ 11 ถึง 20
Counting and identifying 11–20 Member only
Quiz available for some skills in this chapter
Practice counting and identifying 11–20 and connect quantities with place value
Reading and writing 11–20 Member only
Quiz available for some skills in this chapter
Practice reading and writing 11–20 and connect quantities with place value
Representing numbers 11–20 Member only
Quiz available for some skills in this chapter
Practice representing numbers 11–20 and connect quantities with place value
Tens and ones Member only
Quiz available for some skills in this chapter
Practice tens and ones and connect quantities with place value
Comparing numbers 11–20 Member only
Quiz available for some skills in this chapter
Practice comparing numbers 11–20 and connect quantities with place value
Ordering and locating numbers 11–20 Member only
Quiz available for some skills in this chapter
Practice ordering and locating numbers 11–20 and connect quantities with place value
Relationships and patterns in 11–20 Member only
Quiz available for some skills in this chapter
Practice relationships and patterns in 11–20 and connect quantities with place value
Term 1
Chapter 5 การบวก การลบจำนวนนับไม่เกิน 20
Addition with sums up to 20 Member only
Quiz available for some skills in this chapter
Build understanding, calculate and explain reasoning with quantities and results up to twenty.
Make-ten addition strategy Member only
Quiz available for some skills in this chapter
Build understanding, calculate and explain reasoning with quantities and results up to twenty.
Subtraction from numbers up to 20 Member only
Quiz available for some skills in this chapter
Build understanding, calculate and explain reasoning with quantities and results up to twenty.
Subtracting through ten Member only
Quiz available for some skills in this chapter
Build understanding, calculate and explain reasoning with quantities and results up to twenty.
Addition and subtraction relationships Member only
Quiz available for some skills in this chapter
Build understanding, calculate and explain reasoning with quantities and results up to twenty.
Finding missing numbers Member only
Quiz available for some skills in this chapter
Build understanding, calculate and explain reasoning with quantities and results up to twenty.
Comparing addition and subtraction expressions Member only
Quiz available for some skills in this chapter
Build understanding, calculate and explain reasoning with quantities and results up to twenty.
Addition and subtraction situations Member only
Quiz available for some skills in this chapter
Build understanding, calculate and explain reasoning with quantities and results up to twenty.
Term 1
Chapter 6 แผนภูมิรูปภาพ
Reading pictograph data Member only
Quiz available for some skills in this chapter
Read, compare, construct and use data with one picture per student.
Comparing pictograph data Member only
Quiz available for some skills in this chapter
Read, compare, construct and use data with one picture per student.
Calculating sums and differences from data Member only
Quiz available for some skills in this chapter
Read, compare, construct and use data with one picture per student.
Finding missing pictograph data Member only
Quiz available for some skills in this chapter
Read, compare, construct and use data with one picture per student.
Constructing and completing pictographs Member only
Quiz available for some skills in this chapter
Read, compare, construct and use data with one picture per student.
Using and interpreting data Member only
Quiz available for some skills in this chapter
Read, compare, construct and use data with one picture per student.
Term 1
Chapter 7 การวัดน้ำหนัก
Weight concepts Member only
Quiz available for some skills in this chapter
Build understanding by reading and using weight information.
Comparing weights Member only
Quiz available for some skills in this chapter
Build understanding by reading and using weight information.
Non-standard weighing units Member only
Quiz available for some skills in this chapter
Build understanding by reading and using weight information.
Weight in kilograms Member only
Quiz available for some skills in this chapter
Build understanding by reading and using weight information.
Comparing and calculating weights Member only
Quiz available for some skills in this chapter
Build understanding by reading and using weight information.
Solving weight situations Member only
Quiz available for some skills in this chapter
Build understanding by reading and using weight information.
Term 2
Chapter 8 การบอกตำแหน่งและอันดับที่
Left and right positions Member only
Quiz available for some skills in this chapter
Practice positions and ordinals with explicit references and directions.
Above/below and front/back Member only
Quiz available for some skills in this chapter
Practice positions and ordinals with explicit references and directions.
Near/far, between and adjacent Member only
Quiz available for some skills in this chapter
Practice positions and ordinals with explicit references and directions.
Multiple spatial relationships Member only
Quiz available for some skills in this chapter
Practice positions and ordinals with explicit references and directions.
Ordinal positions Member only
Quiz available for some skills in this chapter
Practice positions and ordinals with explicit references and directions.
Position and ordinal situations Member only
Quiz available for some skills in this chapter
Practice positions and ordinals with explicit references and directions.
Term 2
Chapter 9 รูปเรขาคณิต
Identify 2D shapes Member only
Quiz available for some skills in this chapter
Identify 2D shapes
Describe and classify 2D shapes Member only
Quiz available for some skills in this chapter
Describe and classify 2D shapes
Identify 3D solids Member only
Quiz available for some skills in this chapter
Identify 3D solids
Solids and everyday objects Member only
Quiz available for some skills in this chapter
Solids and everyday objects
Compose and decompose shapes Member only
Quiz available for some skills in this chapter
Compose and decompose shapes
Geometric patterns Member only
Quiz available for some skills in this chapter
Geometric patterns
Reason about shape properties Member only
Quiz available for some skills in this chapter
Reason about shape properties
Term 2
Chapter 10 จำนวนนับ 21 ถึง 100
Count 21–100 Member only
Quiz available for some skills in this chapter
Count 21–100
Read and write 21–100 Member only
Quiz available for some skills in this chapter
Read and write 21–100
Tens and ones Member only
Quiz available for some skills in this chapter
Tens and ones
Place value and expanded form Member only
Quiz available for some skills in this chapter
Place value and expanded form
Compare numbers through 100 Member only
Quiz available for some skills in this chapter
Compare numbers through 100
Order and locate numbers Member only
Quiz available for some skills in this chapter
Order and locate numbers
Number patterns through 100 Member only
Quiz available for some skills in this chapter
Number patterns through 100
Term 2
Chapter 11 การวัดความยาว
Length concepts Member only
Quiz available for some skills in this chapter
Length concepts
Direct length comparison Member only
Quiz available for some skills in this chapter
Direct length comparison
Non-standard measurement Member only
Quiz available for some skills in this chapter
Non-standard measurement
Centimeter measurement Member only
Quiz available for some skills in this chapter
Centimeter measurement
Compare and calculate lengths Member only
Quiz available for some skills in this chapter
Compare and calculate lengths
Length situations Member only
Quiz available for some skills in this chapter
Length situations
Term 2
Chapter 12 การบวกที่ผลบวกไม่เกิน 100
Add multiples of ten Member only
Quiz available for some skills in this chapter
Add multiples of ten
Add two-digit and one-digit numbers Member only
Quiz available for some skills in this chapter
Add two-digit and one-digit numbers
Add without regrouping Member only
Quiz available for some skills in this chapter
Add without regrouping
Place value and decomposition Member only
Quiz available for some skills in this chapter
Place value and decomposition
Regroup ones into tens Member only
Quiz available for some skills in this chapter
Regroup ones into tens
Missing addends and checking Member only
Quiz available for some skills in this chapter
Missing addends and checking
Addition situations Member only
Quiz available for some skills in this chapter
Addition situations
Term 2
Chapter 13 การลบจำนวนที่ตัวตั้งไม่เกิน 100
Subtract multiples of ten Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Subtract one digit from two digits Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Subtract without exchanging a ten Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Subtract using place value Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Exchange one ten for ten ones Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Missing numbers and checking Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Subtraction situations Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Term 2
Chapter 14 โจทย์ปัญหาการบวกและโจทย์ปัญหาการลบ
Combine problems Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Add-to problems Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Take-away problems Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Comparison problems Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Unknown quantities Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Analyze and model situations Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
Multi-step problems and reasoning Member only
Quiz available for some skills in this chapter
Build understanding, then use place value and reasoning.
A short, focused practice session is a good place to start. You can always come back for more.