Adding and subtracting
Number bonds to 100
Learn about number bonds to 100 using tens and ones.
Add 2-digit numbers
Learn how to add two-digit numbers.
Adding 3-digit and 1-digit numbers together
Explore examples and a video to show how to add up to 3-digits and 1-digit numbers.
Add 3-digit and 2-digit numbers
Learn how to add 3-digit and 2-digit numbers using the column method.
Subtracting 2-digit numbers
Find out how number columns allow you to take large numbers and subtract one from another.
Subtract a 1-digit number from a 3-digit number
Learn some different methods for subtracting a one-digit number from a three-digit number.
How to add and subtract in your head
Explore how to use mental methods for addition and subtraction.
