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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 84 · 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. 1.0.71 × 2.1 =
  2. 2.0.62 × 1.1 =
  3. 3.1.6 × 0.4 =
  4. 4.6.1 × 0.03 =
  5. 5.0.07 × 3.6 =
  6. 6.0.32 × 3.6 =
  7. 7.7.4 × 0.28 =
  8. 8.0.65 × 1.6 =
  9. 9.0.02 × 0.5 =
  10. 10.0.11 × 3.2 =
  11. 11.0.13 × 0.7 =
  12. 12.0.23 × 1.1 =
  13. 13.0.81 × 2.1 =
  14. 14.1.8 × 0.07 =
  15. 15.0.72 × 0.9 =
  16. 16.6.3 × 0.07 =
  17. 17.8.3 × 0.33 =
  18. 18.3.4 × 1.6 =
  19. 19.0.92 × 3.8 =
  20. 20.5.2 × 0.18 =
  21. 21.0.4 × 3.9 =
  22. 22.6.7 × 3.6 =
  23. 23.2.1 × 1.5 =
  24. 24.5.6 × 1.3 =
  25. 25.9.1 × 0.39 =
  26. 26.0.97 × 2.6 =
  27. 27.0.87 × 1.2 =
  28. 28.0.28 × 0.5 =
  29. 29.0.06 × 1.2 =
  30. 30.0.28 × 1.3 =
  31. 31.0.02 × 1.8 =
  32. 32.0.74 × 0.4 =
  33. 33.1.2 × 2.3 =
  34. 34.7.3 × 0.22 =
  35. 35.1.2 × 1.9 =
  36. 36.0.98 × 2.7 =
  37. 37.9.7 × 3.8 =
  38. 38.5.1 × 0.31 =
  39. 39.0.11 × 1.4 =
  40. 40.0.34 × 1.1 =

Answer key

  1. 1.491
  2. 0.682
  3. 0.64
  4. 0.183
  5. 0.252
  6. 1.152
  7. 2.072
  8. 1.04
  9. 0.01
  10. 0.352
  11. 0.091
  12. 0.253
  13. 1.701
  14. 0.126
  15. 0.648
  16. 0.441
  17. 2.739
  18. 5.44
  19. 3.496
  20. 0.936
  21. 1.56
  22. 24.12
  23. 3.15
  24. 7.28
  25. 3.549
  26. 2.522
  27. 1.044
  28. 0.14
  29. 0.072
  30. 0.364
  31. 0.036
  32. 0.296
  33. 2.76
  34. 1.606
  35. 2.28
  36. 2.646
  37. 36.86
  38. 1.581
  39. 0.154
  40. 0.374

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