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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 177 · 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. 1.8.5 × 0.18 =
  2. 2.3.2 × 0.04 =
  3. 3.3.2 × 0.2 =
  4. 4.0.33 × 0.5 =
  5. 5.9.2 × 0.5 =
  6. 6.5.8 × 2.7 =
  7. 7.0.17 × 3.1 =
  8. 8.9.6 × 0.6 =
  9. 9.2.8 × 0.03 =
  10. 10.0.74 × 1.9 =
  11. 11.0.03 × 1.3 =
  12. 12.0.81 × 2.1 =
  13. 13.0.93 × 0.5 =
  14. 14.5.3 × 0.2 =
  15. 15.0.22 × 0.5 =
  16. 16.0.71 × 0.9 =
  17. 17.0.99 × 1.5 =
  18. 18.9.7 × 2.2 =
  19. 19.0.45 × 0.8 =
  20. 20.0.28 × 3.1 =
  21. 21.0.33 × 1.3 =
  22. 22.0.13 × 1.8 =
  23. 23.9.2 × 0.6 =
  24. 24.0.83 × 0.3 =
  25. 25.8.1 × 0.9 =
  26. 26.0.96 × 2.1 =
  27. 27.0.98 × 1.8 =
  28. 28.0.56 × 3.6 =
  29. 29.5.9 × 1.1 =
  30. 30.6.4 × 0.11 =
  31. 31.1.3 × 0.11 =
  32. 32.0.62 × 3.8 =
  33. 33.2.6 × 1.5 =
  34. 34.0.66 × 2.6 =
  35. 35.0.85 × 2.1 =
  36. 36.0.06 × 0.4 =
  37. 37.5.9 × 0.21 =
  38. 38.0.46 × 3.1 =
  39. 39.7.4 × 0.15 =
  40. 40.3.7 × 2.7 =

Answer key

  1. 1.53
  2. 0.128
  3. 0.64
  4. 0.165
  5. 4.6
  6. 15.66
  7. 0.527
  8. 5.76
  9. 0.084
  10. 1.406
  11. 0.039
  12. 1.701
  13. 0.465
  14. 1.06
  15. 0.11
  16. 0.639
  17. 1.485
  18. 21.34
  19. 0.36
  20. 0.868
  21. 0.429
  22. 0.234
  23. 5.52
  24. 0.249
  25. 7.29
  26. 2.016
  27. 1.764
  28. 2.016
  29. 6.49
  30. 0.704
  31. 0.143
  32. 2.356
  33. 3.9
  34. 1.716
  35. 1.785
  36. 0.024
  37. 1.239
  38. 1.426
  39. 1.11
  40. 9.99

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