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Subtraction Within 10

Grade 1 · Building confidence · 12 questions · Version PG-1PXGROV-1NMO

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1.2 - 2 =
2.1 - 1 =
3.5 - 2 =
4.7 - 1 =
5.3 - 2 =
6.6 - 1 =
7.3 - 1 =
8.8 - 2 =
9.8 - 1 =
10.9 - 5 =
11.9 - 2 =
12.10 - 4 =

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 5
  1. 2 - 2 =0
  2. 1 - 1 =0
  3. 5 - 2 =3
  4. 7 - 1 =6
  5. 3 - 2 =1
  6. 6 - 1 =5
  7. 3 - 1 =2
  8. 8 - 2 =6
  9. 8 - 1 =7
  10. 9 - 5 =4
  11. 9 - 2 =7
  12. 10 - 4 =6

Worked example

9 - 4 = 5. Count back four from 9: 8, 7, 6, 5.

Common mistake

Counting the starting number as one of the steps back.

Helpful hint

Count backward one step for each amount taken away.