10 More or 10 Less · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

10 More or 10 Less

Mathematics · Number Representation & Place Value · ages 6-7
Name ______________________   Date ____________

  1. What is 10 less than 63?

    Answer: ______________

  2. What is 10 more than 37?

    • 27
    • 47
    • 38
    • 36

  3. What is 10 more than 23?

    10131619232831343740
    • 13
    • 24
    • 33

  4. True or false: when you find 10 more than a number, the ones digit changes.

    Circle one:   True   False

  5. What is 10 more than 68?

    Answer: ______________

  6. Which sentence explains why 64 plus 10 equals 74?

    • The ones digit goes up by one, from 4 to 5
    • The tens digit goes up by one, from 6 to 7
    • Both digits go up by one

  7. Adding 10 to 52 changes which digit?

    • The ones digit: 2 becomes 3
    • Both digits change
    • The tens digit: 5 becomes 6
    • Neither digit changes

  8. Eva says 10 less than 75 is 74. Is Eva right?

    Circle one:   True   False

  9. Mia says 10 more than 29 is 30. Is she correct?

    • Yes, 30 is correct
    • No, it should be 39
    • No, it should be 19

  10. What is 10 more than 84?

    Answer: ______________

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Answer key

For grown-ups. Fold this page away before handing over the rest.

10 More or 10 Less W1-mt_kw7xmp68rU-s1

  1. 53 · Taking 10 lowers the tens digit from 6 to 5, giving 53.
  2. 47 · Adding 10 raises the tens digit from 3 to 4, giving 47.
  3. 33 · Adding 10 moves the tens digit up by one: 2 becomes 3, so 23 becomes 33.
  4. False · The ones digit always stays the same. Only the tens digit changes.
  5. 78 · Adding 10 raises the 6 tens to 7 tens, giving 78.
  6. The tens digit goes up by one, from 6 to 7 · Adding 10 adds one whole group of ten, so only the tens digit changes.
  7. The tens digit: 5 becomes 6 · Adding 10 adds one ten, so the 5 in the tens place becomes 6 and 52 becomes 62.
  8. False · Eva is wrong. Ten less than 75 is 65, because the tens digit drops from 7 to 6.
  9. No, it should be 39 · Only the tens digit changes: 2 becomes 3. The ones digit 9 stays the same, so the answer is 39, not 30.
  10. 94 · Adding 10 raises the tens digit from 8 to 9, giving 94.
Worksheet · LightMySky