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Addition Within 100

Grade 2 · On-level practice · 14 questions · Version PG-Q7BDSA-WZ9S

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1.37 + 63 =
2.50 + 50 =
3.61 + 39 =
4.91 + 9 =
5.60 + 40 =
6.21 + 11 =
7.45 + 55 =
8.36 + 40 =
9.63 + 37 =
10.11 + 52 =
11.92 + 8 =
12.34 + 66 =
13.100 + 0 =
14.88 + 12 =

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 10
  1. 37 + 63 =100
  2. 50 + 50 =100
  3. 61 + 39 =100
  4. 91 + 9 =100
  5. 60 + 40 =100
  6. 21 + 11 =32
  7. 45 + 55 =100
  8. 36 + 40 =76
  9. 63 + 37 =100
  10. 11 + 52 =63
  11. 92 + 8 =100
  12. 34 + 66 =100
  13. 100 + 0 =100
  14. 88 + 12 =100

Worked example

38 + 24 = 62. Add ones: 8 + 4 = 12, regroup 1 ten, then add tens.

Common mistake

Forgetting to add the regrouped ten.

Helpful hint

Line up ones with ones and tens with tens.