Number Bonds to 20 Worksheet
Free Printable Worksheet
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Number Bonds to 20
Grade 1–2 · Part-Part-Whole
The whole is at the top. The two parts are at the bottom. Fill in the missing number in each dashed circle.
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About this Number Bonds to 20 Worksheet
Free printable number bonds to 20 worksheet for Grade 1–2. Each part-part-whole diagram has one number missing — students find the missing whole or part. 12 problems covering all bond combinations to 20. Used in Singapore Math, UK primary maths, and early number sense programmes worldwide. Print on A4 or US Letter.