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Subtraction Within 100

Grade 2 · Building confidence · 14 questions · Version PG-1X3SS3P-1N26

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1.29 - 3 =
2.70 - 32 =
3.1 - 0 =
4.32 - 21 =
5.83 - 83 =
6.25 - 14 =
7.54 - 49 =
8.60 - 0 =
9.26 - 20 =
10.52 - 9 =
11.94 - 55 =
12.91 - 75 =
13.97 - 73 =
14.53 - 14 =

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 4
  1. 29 - 3 =26
  2. 70 - 32 =38
  3. 1 - 0 =1
  4. 32 - 21 =11
  5. 83 - 83 =0
  6. 25 - 14 =11
  7. 54 - 49 =5
  8. 60 - 0 =60
  9. 26 - 20 =6
  10. 52 - 9 =43
  11. 94 - 55 =39
  12. 91 - 75 =16
  13. 97 - 73 =24
  14. 53 - 14 =39

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.