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Subtraction Within 10

Grade 1 · Building confidence · 12 questions · Version PG-1T6729A-1NMO

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1.2 - 1 =
2.1 - 1 =
3.10 - 8 =
4.6 - 5 =
5.2 - 0 =
6.2 - 2 =
7.5 - 5 =
8.10 - 0 =
9.9 - 2 =
10.5 - 2 =
11.1 - 0 =
12.8 - 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 19
  1. 2 - 1 =1
  2. 1 - 1 =0
  3. 10 - 8 =2
  4. 6 - 5 =1
  5. 2 - 0 =2
  6. 2 - 2 =0
  7. 5 - 5 =0
  8. 10 - 0 =10
  9. 9 - 2 =7
  10. 5 - 2 =3
  11. 1 - 0 =1
  12. 8 - 4 =4

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.