This printable subtraction worksheet contains twelve calculations using numbers within 20. Every answer is a nonnegative whole number, so the practice stays within a familiar counting range. The separate answer key uses the same numbering and layout.
Your subtraction practice page
Read the number on the left as the starting amount. The number after the minus sign tells you how much to remove or count back. Write the difference on the line, and use the open space underneath when you need a drawing.
Try more than one way to check
For 17 − 11, you can count back eleven from seventeen, or ask what must be added to eleven to make seventeen. Both approaches lead to 6. A number line or a small set of counters can make the change visible.
The worksheet also includes subtracting zero. In 8 − 0, nothing is removed, so the starting amount stays 8. Ask the learner to explain why this differs from 8 − 8.
Matching answer key
Answers in worksheet order: 13, 6, 15, 8, 17, 14, 7, 4, 1, 3, 12, 5.
Work in small groups of problems
Cover the answer key while practicing. Complete one row of three problems, check it, and explain one of the methods used. If an answer differs from the key, return to the starting amount and track each step instead of simply replacing the answer.
This is a focused practice sheet rather than a timed test. It does not introduce negative differences, borrowing with large numbers, or decimal subtraction.
Download and print
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