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Subtraction Within 100

Grade 2 · Stretch challenge · 14 questions · Version PG-MRY507-Y5PE

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1.36 - 9 =
2.54 - 21 =
3.58 - 18 =
4.83 - 61 =
5.96 - 76 =
6.66 - 30 =
7.59 - 59 =
8.6 - 2 =
9.99 - 97 =
10.12 - 1 =
11.79 - 37 =
12.24 - 8 =
13.56 - 25 =
14.96 - 20 =

Answers and teaching notes

Use the answers to check the work after the learner finishes. For writing prompts, the guide describes what a strong response should include.

Show answers for version 19
  1. 36 - 9 =27
  2. 54 - 21 =33
  3. 58 - 18 =40
  4. 83 - 61 =22
  5. 96 - 76 =20
  6. 66 - 30 =36
  7. 59 - 59 =0
  8. 6 - 2 =4
  9. 99 - 97 =2
  10. 12 - 1 =11
  11. 79 - 37 =42
  12. 24 - 8 =16
  13. 56 - 25 =31
  14. 96 - 20 =76

Worked example

73 - 28 = 45. Regroup 7 tens 3 ones as 6 tens 13 ones.

Common mistake

Subtracting the smaller digit from the larger digit in each column regardless of order.

Helpful hint

Line up place values before subtracting.