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Addition Within 100

Grade 2 · On-level practice · 14 questions · Version PG-PNC6EC-WZ9S

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1.29 + 50 =
2.55 + 33 =
3.20 + 46 =
4.38 + 52 =
5.4 + 60 =
6.75 + 25 =
7.5 + 87 =
8.85 + 15 =
9.31 + 69 =
10.54 + 46 =
11.74 + 26 =
12.34 + 41 =
13.34 + 38 =
14.38 + 3 =

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 12
  1. 29 + 50 =79
  2. 55 + 33 =88
  3. 20 + 46 =66
  4. 38 + 52 =90
  5. 4 + 60 =64
  6. 75 + 25 =100
  7. 5 + 87 =92
  8. 85 + 15 =100
  9. 31 + 69 =100
  10. 54 + 46 =100
  11. 74 + 26 =100
  12. 34 + 41 =75
  13. 34 + 38 =72
  14. 38 + 3 =41

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.