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Subtraction within 20

Name: ______________________Class: ________Date: ____________Score: ____ / 10
  1. 1.

    15 - 6 = ?

    Answer: ____________________________________

  2. 2.

    18 - 9 = ?

    (a) 7(b) 8(c) 9(d) 10
  3. 3.

    There are 20 sweets. You give away 8. How many are left?

    Answer: ____________________________________

  4. 4.

    17 - 8 = ?

    (a) 8(b) 9(c) 10(d) 11
  5. 5.

    14 - 7 = ?

    Answer: ____________________________________

  6. 6.

    20 - 5 = ?

    (a) 13(b) 14(c) 15(d) 16
  7. 7.

    13 - 6 = ?

    Answer: ____________________________________

  8. 8.

    16 - 9 = ?

    (a) 6(b) 7(c) 8(d) 9
  9. 9.

    Tom has 19 marbles. He loses 11. How many are left?

    Answer: ____________________________________

  10. 10.

    20 - 20 = ?

    (a) 0(b) 1(c) 2(d) 20

Answer key — P1 Math: Subtraction within 20

For parents. Step-by-step explanations for every question are free on brightbit.net.

  1. 1.9
  2. 2.(c) 9
  3. 3.12
  4. 4.(b) 9
  5. 5.7
  6. 6.(c) 15
  7. 7.7
  8. 8.(b) 7
  9. 9.8
  10. 10.(a) 0
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