Pupils should be taught to:

• add numbers mentally, including:
  • a three-digit number and 1s
  • a three-digit number and 10s
  • a three-digit number and 100s
• add numbers with up to 3 digits (4 digits in yr4), using column method
• use inverse operations to check answers
• solve problems, including missing number problems, using number facts, place value, and more complex addition 

In order to complete a range of addition problems, children need a good understanding of the number bonds to 20.

See Links at the bottom of this page for some online games.