Fast mental addition skills

Plenty of addition of a single digit to a 2-digit number, with the help of a 1-100 number square.

Try these adding to make the next whole ten questions - good revision and practice.

Add 10 and subtract 1 to help answer these questions really quickly.

Whiz through these pages as quickly as possible.

Speedy addition with answers up to 20.

More adding to make the next whole ten.

Using part-whole models to add 2-digit numbers to multiples of 10.

Some quickfire questions on adding multiples of 10 (2-digit numbers only)