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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 733 · 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. 1.2.1 × 0.12 =
  2. 2.2.9 × 3.4 =
  3. 3.0.98 × 3.9 =
  4. 4.0.3 × 0.14 =
  5. 5.0.33 × 1.2 =
  6. 6.0.16 × 0.7 =
  7. 7.0.6 × 2.1 =
  8. 8.0.91 × 0.8 =
  9. 9.0.69 × 3.9 =
  10. 10.0.9 × 0.16 =
  11. 11.0.43 × 2.5 =
  12. 12.0.98 × 0.3 =
  13. 13.8.7 × 1.6 =
  14. 14.4.7 × 1.9 =
  15. 15.0.38 × 3.4 =
  16. 16.0.31 × 2.1 =
  17. 17.0.96 × 2.1 =
  18. 18.3.7 × 3.3 =
  19. 19.8.9 × 0.23 =
  20. 20.0.96 × 2.4 =
  21. 21.3.8 × 0.39 =
  22. 22.0.72 × 1.7 =
  23. 23.0.81 × 1.2 =
  24. 24.3.4 × 0.23 =
  25. 25.1.5 × 0.39 =
  26. 26.7.1 × 0.6 =
  27. 27.0.92 × 3.8 =
  28. 28.1.2 × 0.13 =
  29. 29.5.7 × 0.5 =
  30. 30.0.61 × 2.7 =
  31. 31.0.05 × 0.6 =
  32. 32.0.26 × 2.4 =
  33. 33.0.88 × 1.6 =
  34. 34.0.48 × 0.2 =
  35. 35.5.9 × 3.7 =
  36. 36.3.4 × 2.3 =
  37. 37.0.62 × 2.5 =
  38. 38.9.8 × 0.38 =
  39. 39.0.29 × 2.3 =
  40. 40.2.3 × 3.1 =

Answer key

  1. 0.252
  2. 9.86
  3. 3.822
  4. 0.042
  5. 0.396
  6. 0.112
  7. 1.26
  8. 0.728
  9. 2.691
  10. 0.144
  11. 1.075
  12. 0.294
  13. 13.92
  14. 8.93
  15. 1.292
  16. 0.651
  17. 2.016
  18. 12.21
  19. 2.047
  20. 2.304
  21. 1.482
  22. 1.224
  23. 0.972
  24. 0.782
  25. 0.585
  26. 4.26
  27. 3.496
  28. 0.156
  29. 2.85
  30. 1.647
  31. 0.03
  32. 0.624
  33. 1.408
  34. 0.096
  35. 21.83
  36. 7.82
  37. 1.55
  38. 3.724
  39. 0.667
  40. 7.13

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