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Subtraction Within 100

Grade 2 · Building confidence · 14 questions · Version PG-1XXRL6M-1N26

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1.45 - 14 =
2.5 - 1 =
3.72 - 45 =
4.86 - 67 =
5.16 - 13 =
6.5 - 0 =
7.2 - 1 =
8.46 - 38 =
9.32 - 9 =
10.68 - 14 =
11.7 - 5 =
12.61 - 12 =
13.22 - 6 =
14.75 - 6 =

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 9
  1. 45 - 14 =31
  2. 5 - 1 =4
  3. 72 - 45 =27
  4. 86 - 67 =19
  5. 16 - 13 =3
  6. 5 - 0 =5
  7. 2 - 1 =1
  8. 46 - 38 =8
  9. 32 - 9 =23
  10. 68 - 14 =54
  11. 7 - 5 =2
  12. 61 - 12 =49
  13. 22 - 6 =16
  14. 75 - 6 =69

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.