Our class puppet wants to work out 9 + 2. Watch: the puppet starts at 1 and counts all the way up… 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11. That took ages!

Hands up: was there a quicker way? What would you tell the puppet?

Four sums on the number line. For each one, look where we stand first, then count the little jumps. Say the landing number out loud.

Look at 12 + 0 carefully. There is no jump at all, so we stay on 12.

Stand up! We jump the sums. Say the number we stand on. Then jump on the spot once for each little jump, counting on as you land. For a zero, stand still.

We will jump 6 + 1, then 10 + 2, then 13 + 0, then 14 + 2.