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Subtraction Within 10

Grade 1 · Building confidence · 12 questions · Version PG-1S28NHE-1NMO

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1.9 - 1 =
2.5 - 1 =
3.8 - 4 =
4.3 - 0 =
5.10 - 9 =
6.1 - 0 =
7.2 - 1 =
8.5 - 0 =
9.3 - 3 =
10.10 - 5 =
11.1 - 1 =
12.2 - 0 =

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 15
  1. 9 - 1 =8
  2. 5 - 1 =4
  3. 8 - 4 =4
  4. 3 - 0 =3
  5. 10 - 9 =1
  6. 1 - 0 =1
  7. 2 - 1 =1
  8. 5 - 0 =5
  9. 3 - 3 =0
  10. 10 - 5 =5
  11. 1 - 1 =0
  12. 2 - 0 =2

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.