# Addition and Subtraction Within 100

Free worksheets, games, songs and resources to support children learning to add and subtract numbers up to 100.

Subtracting 1 (within 100)

Adding 1 (within 100) Tricky Ones

Subtracting 1 (within 100) Tricky Ones

Subtract 1/10 within 10/100

Adding 10 to multiples of 10

Subtracting 10 from a multiple of 10

Add a 1-digit number to a multiple of 10.

Add a 1-digit number to a 2-digit number.

Subtract a 1-digit number from a multiple of 10.

Subtract a 1-digit number from a 2-digit number.

Add or subtract a 1-digit number to or from a multiple of 10.

Add or subtract a 1-digit number to or from a 2-digit number.

Make 10 / Make 100 (Multiples of 10)

Add 10 to a 2-digit number (within 100)

Subtract 10 from a 2-digit number

Add/subtract 10 with 2-digit numbers (within 100)

Add multiples of 10 to 2-digit numbers (within 100)

Subtract multiples of 10 from 2-digit numbers

Add 1s (within 10) and related 10s (within 100)

Subtracting 1s (within 10) and related 10s (within 100)

Subtract 10 / subtract 9 (2-digit)

Subtract 10 / Subtract 11 (2-digit)

Set your time and see how many one more/one less (within 100) questions you can answer. Use the number grid to help if needed.

Add 1-digit to a multiple of 10

Subtract a 1-digit number from a multiple of 10

Add 1-digit and 2-digit numbers interactive

Set your time and see how many questions you can answer. Use the number track to help if needed.

Subtract a 1-digit number from a 2-digit number

Set your time and see how many questions you can answer. Use the number track to help if needed.