Math · Ages 5–7 · 12 minutes

Number Bonds to 20: Part-Part-Whole Circles

Children use a clear whole circle and two part circles to see that a number can be split in more than one useful way.

Student name

BrightPath

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Today I am practising: finding two parts that make a whole to 20

Whole 10: write 6 and ___ in the two part circles.

Whole 12: draw 5 dots in one part. How many dots belong in the other part?

Whole 14: complete 9 + ___ = 14.

Whole 16: write two equal parts.

Whole 18: make a bond with one part 10.

Choose a whole from 11 to 20. Draw and label a new number bond.

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

For the grown-up

How to teach this page

Step 1Cover one part circle with a finger only after the child has seen both parts.
Step 2Ask the child to say the whole sentence: '6 and 4 make 10.'
Step 3Use counters for one item if the written numbers do not yet feel concrete.