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Two-Digit by One-Digit Multiplication

Grade 4 · Stretch challenge · 12 questions · Version PG-9KE1AG-1SL5

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1.99 x 8 =
2.17 x 11 =
3.86 x 4 =
4.28 x 5 =
5.77 x 4 =
6.33 x 4 =
7.29 x 12 =
8.57 x 11 =
9.20 x 4 =
10.35 x 8 =
11.36 x 12 =
12.16 x 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 9
  1. 99 x 8 =792
  2. 17 x 11 =187
  3. 86 x 4 =344
  4. 28 x 5 =140
  5. 77 x 4 =308
  6. 33 x 4 =132
  7. 29 x 12 =348
  8. 57 x 11 =627
  9. 20 x 4 =80
  10. 35 x 8 =280
  11. 36 x 12 =432
  12. 16 x 4 =64

Worked example

34 x 6 = 204. Multiply 30 x 6 and 4 x 6, then add.

Common mistake

Multiplying only the ones digit.

Helpful hint

Break the two-digit number into tens and ones.