Subtracting multiples of 10 · seed 1 · A4, ink-friendly. The answer key prints on its own page for grown-ups.

Taking away tens

Mathematics · Addition & Subtraction · ages 6-7
Name ______________________   Date ____________

  1. What is 90 − 60?

    • 20
    • 30
    • 40

  2. What is 90 - 40?

    • 40
    • 60
    • 30
    • 50

  3. What is 80 - 50?

    Answer: ______________

  4. What is 70 − 30?

    • 30
    • 40
    • 50

  5. 40 + 30 = 70, so 70 - 40 = 30. Is that right?

    Circle one:   True   False

  6. 50 - ? = 20. What is the missing number?

    • 30
    • 20
    • 40
    • 10

  7. What is 100 - 60?

    Answer: ______________

  8. What is 50 − 20?

    • 40
    • 20
    • 30

  9. Mia solves 90 − 60 and writes 3. What went wrong?

    • She forgot to put the zero back after subtracting the tens digits
    • She subtracted the wrong tens digits
    • She added instead of subtracting

  10. With blocks, 8 ten-sticks take away 5 ten-sticks leaves 3 ten-sticks, so 80 - 50 = 30. Is that right?

    Circle one:   True   False

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Answer key

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

Taking away tens W1-mt_HJTuIGHvcR-s1

  1. 30 · Nine tens minus six tens is three tens, so 90 − 60 = 30.
  2. 50 · 9 tens take away 4 tens leaves 5 tens.
  3. 30 · 8 tens take away 5 tens leaves 3 tens.
  4. 40 · Seven tens minus three tens is four tens, so 70 − 30 = 40.
  5. True · Right: the addition fact gives the subtraction.
  6. 30 · 5 tens take away some leaves 2 tens, so 3 tens.
  7. 40 · 10 tens take away 6 tens leaves 4 tens.
  8. 30 · Five tens minus two tens is three tens, so 50 − 20 = 30.
  9. She forgot to put the zero back after subtracting the tens digits · Nine tens minus six tens is three tens, which is 30. Mia dropped the zero, so the real answer is 30.
  10. True · Right: 8 - 5 = 3 sticks, each worth ten.
Worksheet · LightMySky