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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 547 · 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. 1.1.6 × 0.28 =
  2. 2.5.8 × 0.33 =
  3. 3.5.6 × 1.5 =
  4. 4.5.1 × 0.8 =
  5. 5.0.81 × 0.6 =
  6. 6.0.13 × 2.1 =
  7. 7.0.42 × 1.8 =
  8. 8.8.4 × 0.13 =
  9. 9.0.56 × 3.9 =
  10. 10.3.5 × 1.2 =
  11. 11.0.82 × 1.5 =
  12. 12.0.86 × 0.9 =
  13. 13.0.88 × 1.5 =
  14. 14.0.72 × 3.2 =
  15. 15.1.2 × 3.1 =
  16. 16.0.65 × 3.2 =
  17. 17.3.9 × 0.19 =
  18. 18.0.32 × 2.3 =
  19. 19.0.81 × 2.6 =
  20. 20.0.33 × 0.5 =
  21. 21.8.8 × 0.19 =
  22. 22.0.24 × 0.4 =
  23. 23.2.2 × 0.9 =
  24. 24.0.55 × 0.2 =
  25. 25.0.58 × 0.2 =
  26. 26.0.15 × 1.2 =
  27. 27.7.2 × 0.35 =
  28. 28.4.6 × 3.8 =
  29. 29.0.57 × 1.5 =
  30. 30.0.66 × 0.2 =
  31. 31.6.4 × 2.1 =
  32. 32.7.1 × 0.35 =
  33. 33.4.1 × 0.03 =
  34. 34.0.72 × 1.1 =
  35. 35.0.42 × 2.3 =
  36. 36.5.4 × 0.39 =
  37. 37.0.97 × 0.8 =
  38. 38.0.74 × 1.6 =
  39. 39.6.5 × 0.5 =
  40. 40.5.5 × 3.5 =

Answer key

  1. 0.448
  2. 1.914
  3. 8.4
  4. 4.08
  5. 0.486
  6. 0.273
  7. 0.756
  8. 1.092
  9. 2.184
  10. 4.2
  11. 1.23
  12. 0.774
  13. 1.32
  14. 2.304
  15. 3.72
  16. 2.08
  17. 0.741
  18. 0.736
  19. 2.106
  20. 0.165
  21. 1.672
  22. 0.096
  23. 1.98
  24. 0.11
  25. 0.116
  26. 0.18
  27. 2.52
  28. 17.48
  29. 0.855
  30. 0.132
  31. 13.44
  32. 2.485
  33. 0.123
  34. 0.792
  35. 0.966
  36. 2.106
  37. 0.776
  38. 1.184
  39. 3.25
  40. 19.25

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