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Math · Ages 5–7 · 10 minutes

Number Bonds to 20: Rainbow Pair Matches

Children match two colour-coded ends of a rainbow, noticing the partner number needed to complete a target whole.

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Number Bonds to 20: Rainbow Pair Matches

Name:                              
Date:              

Today I am practising: recalling complementary pairs to ten and twenty

1

For whole 10, match 1 with its partner.

2

For whole 10, match 4 with its partner.

3

For whole 20, match 12 with its partner.

4

For whole 20, match 15 with its partner.

5

Colour the pair 8 and 12 the same colour. What whole do they make?

6

Write a new partner pair for either 10 or 20 and add it to the rainbow.

Grown-up note: Ask your learner to explain one answer in their own words.

For the grown-up

How to teach this page

  1. Step 1Offer a pencil-line matching option if cutting is not useful.
  2. Step 2Have the learner say the target whole before every match.
  3. Step 3After matching, cover one side and ask for its partner from memory.