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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 7 · 40 questions
TalentJR

The fast method (Count the places): Forget the points and multiply the whole numbers: 2.5 × 1.4 → 25 × 14 = 350. Count the decimal places in both numbers: 1 + 1 = 2. Put the point that many places from the right: 3.50 — then drop the 0 at the end: 3.5.

NameDateTime takenScore ___ / 40
  1. 1.9.3 × 0.36 =
  2. 2.0.14 × 2.9 =
  3. 3.3.9 × 0.29 =
  4. 4.0.61 × 3.6 =
  5. 5.0.54 × 2.2 =
  6. 6.0.02 × 0.8 =
  7. 7.0.26 × 1.1 =
  8. 8.0.16 × 1.9 =
  9. 9.3.3 × 1.7 =
  10. 10.0.24 × 2.9 =
  11. 11.1.6 × 0.11 =
  12. 12.0.74 × 1.7 =
  13. 13.8.6 × 0.25 =
  14. 14.0.94 × 2.2 =
  15. 15.0.28 × 0.8 =
  16. 16.3.7 × 0.05 =
  17. 17.8.7 × 1.1 =
  18. 18.0.21 × 3.5 =
  19. 19.0.13 × 3.8 =
  20. 20.0.91 × 3.7 =
  21. 21.6.1 × 0.05 =
  22. 22.6.9 × 1.9 =
  23. 23.0.17 × 0.3 =
  24. 24.5.9 × 1.2 =
  25. 25.7.1 × 0.06 =
  26. 26.0.17 × 2.7 =
  27. 27.0.26 × 3.8 =
  28. 28.0.21 × 0.7 =
  29. 29.4.1 × 3.5 =
  30. 30.0.59 × 2.3 =
  31. 31.0.07 × 1.1 =
  32. 32.0.23 × 0.2 =
  33. 33.8.8 × 1.7 =
  34. 34.3.3 × 0.9 =
  35. 35.0.78 × 3.7 =
  36. 36.6.9 × 0.8 =
  37. 37.0.84 × 2.9 =
  38. 38.4.1 × 0.05 =
  39. 39.0.82 × 1.3 =
  40. 40.0.21 × 2.2 =

Answer key

  1. 3.348
  2. 0.406
  3. 1.131
  4. 2.196
  5. 1.188
  6. 0.016
  7. 0.286
  8. 0.304
  9. 5.61
  10. 0.696
  11. 0.176
  12. 1.258
  13. 2.15
  14. 2.068
  15. 0.224
  16. 0.185
  17. 9.57
  18. 0.735
  19. 0.494
  20. 3.367
  21. 0.305
  22. 13.11
  23. 0.051
  24. 7.08
  25. 0.426
  26. 0.459
  27. 0.988
  28. 0.147
  29. 14.35
  30. 1.357
  31. 0.077
  32. 0.046
  33. 14.96
  34. 2.97
  35. 2.886
  36. 5.52
  37. 2.436
  38. 0.205
  39. 1.066
  40. 0.462

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