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Two-Digit by One-Digit Multiplication

Grade 4 · Stretch challenge · 12 questions · Version PG-1W4A7YD-1SL5

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1.71 x 10 =
2.86 x 2 =
3.94 x 7 =
4.31 x 9 =
5.85 x 8 =
6.56 x 5 =
7.50 x 12 =
8.41 x 11 =
9.44 x 3 =
10.50 x 11 =
11.63 x 12 =
12.45 x 2 =

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 17
  1. 71 x 10 =710
  2. 86 x 2 =172
  3. 94 x 7 =658
  4. 31 x 9 =279
  5. 85 x 8 =680
  6. 56 x 5 =280
  7. 50 x 12 =600
  8. 41 x 11 =451
  9. 44 x 3 =132
  10. 50 x 11 =550
  11. 63 x 12 =756
  12. 45 x 2 =90

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.