Printable Number Bonds to 20 Worksheet

This two-page letter-size worksheet is for early math practice with number bonds to 20. It includes Name and Date fields, then a set of problems with columns for Problem and Answer. Each item asks students to work out the missing number in equations such as 0 + ___ = 20, 2 + ___ = 20, and 9 + ___ = 20. The second page is an answer key with columns for #, Problem, and Answer.

Free printable · PDF

2 pages
US Letter — choose “Fit to page” for A4
PDF, 71 KB

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Free for personal, family and classroom use.

Use the first page for independent work, morning math, or a short review. Students fill in each blank to find the number that makes 20. Then use the answer key to check work quickly or to guide correction. Print both pages together for classroom use, or print the practice page on its own for extra drills.

Good for

Independent practice on making 20
Quick check for number bond fluency
Homework or small-group review

Tip: Print the answer key on the back of the practice page for easy self-checking.

9 files · PDF, DOCX

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This sheet plus 8 more in one download, with the editable Word files. Ready-made arithmetic worksheets with answer keys: addition and subtraction without and with regrouping, number bonds to 10 and 20, times tables, division facts and a progress tracker.

$3.00 USD, one-time 9 files · about $0.33 each