Key learning points

1. Ten can be partitioned into pairs of numbers that sum to ten.
2. Quickly remembering these number pairs is important for later work.
3. Knowledge of odd and even numbers can be used to decide if a pair of numbers sums to 10.
4. One number pair can be used to help you find another number pair.

Common misconception

Keywords

• Sum - The result of adding two or more numbers.

• Pair - Two together, often with something in common.

• Odd - Any whole number that cannot be put into pairs.

• Even - Any whole number that can be put into pairs.