Subtract Whole Tens Worksheets for 1st Grade
Subtract multiples of ten from each other (e.g. 70 - 30). 15 free printable worksheets, each with an answer key.
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Click a worksheet to open the PDF, or grab the matching answer key. Every sheet prints on one page.
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Subtract Whole Tens: what children learn
Working only with whole tens (10, 20, 30…) lets kids apply their single-digit subtraction facts to a bigger scale — "7 - 3 = 4" becomes "70 - 30 = 40" with a zero tacked on.
Subtract Whole Tens: worked example
70 - 30 = 40
Think of it as 7 tens minus 3 tens: 7 - 3 = 4, so the answer is 4 tens, or 40.
Subtract Whole Tens: a common mistake to watch for
Kids sometimes forget the trailing zero and write "4" instead of "40" — connecting it explicitly back to the single-digit fact helps this stick.
Subtract Whole Tens: how to help at home or in class
Gather bundles of ten, such as dimes or craft sticks tied together, and place seven in a row. Remove three bundles and count what is left, saying it as tens first and then as a number. Compare with the same story using single objects to show the pattern. Count backward by tens on a hundred chart, moving up one row each time. When your child can name the new number without recounting, mix whole tens with missing numbers.
What is on these Subtract Whole Tens worksheets
This set has 15 different worksheets for 1st grade, with 17 questions on each and a matching answer key for every sheet. The instruction printed on each worksheet is: “Subtract and write the answer.”
Example questions like the ones on these worksheets, with their answers:
- 60 - 30 = 3030
- 70 - 40 = 3030
- 70 - 30 = 4040
- 30 - 0 = 3030
- 20 - 10 = 1010
- 60 - 10 = 5050
- 60 - 40 = 2020
- 50 - 30 = 2020
Every answer on every sheet is checked by a separate program before the worksheet is published. How we check answers