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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 502 · 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 × 0.05 =
  2. 2.0.53 × 0.7 =
  3. 3.0.72 × 1.5 =
  4. 4.0.15 × 1.2 =
  5. 5.0.64 × 2.7 =
  6. 6.8.9 × 0.8 =
  7. 7.6.5 × 1.5 =
  8. 8.5.9 × 2.8 =
  9. 9.0.29 × 1.5 =
  10. 10.7.9 × 0.31 =
  11. 11.0.61 × 2.1 =
  12. 12.9.7 × 0.16 =
  13. 13.6.9 × 0.5 =
  14. 14.0.54 × 3.8 =
  15. 15.4.8 × 2.4 =
  16. 16.8.1 × 3.5 =
  17. 17.0.71 × 1.8 =
  18. 18.0.61 × 0.9 =
  19. 19.0.92 × 3.6 =
  20. 20.0.76 × 2.1 =
  21. 21.0.85 × 2.4 =
  22. 22.8.7 × 0.6 =
  23. 23.0.08 × 0.5 =
  24. 24.0.07 × 1.1 =
  25. 25.2.2 × 3.8 =
  26. 26.7.2 × 0.02 =
  27. 27.0.8 × 3.7 =
  28. 28.2.4 × 2.7 =
  29. 29.5.1 × 1.6 =
  30. 30.1.9 × 1.1 =
  31. 31.0.2 × 1.6 =
  32. 32.7.4 × 3.9 =
  33. 33.8.1 × 0.05 =
  34. 34.0.63 × 1.7 =
  35. 35.3.6 × 0.11 =
  36. 36.7.2 × 0.33 =
  37. 37.5.4 × 0.12 =
  38. 38.2.1 × 2.1 =
  39. 39.8.4 × 0.04 =
  40. 40.5.6 × 0.11 =

Answer key

  1. 0.425
  2. 0.371
  3. 1.08
  4. 0.18
  5. 1.728
  6. 7.12
  7. 9.75
  8. 16.52
  9. 0.435
  10. 2.449
  11. 1.281
  12. 1.552
  13. 3.45
  14. 2.052
  15. 11.52
  16. 28.35
  17. 1.278
  18. 0.549
  19. 3.312
  20. 1.596
  21. 2.04
  22. 5.22
  23. 0.04
  24. 0.077
  25. 8.36
  26. 0.144
  27. 2.96
  28. 6.48
  29. 8.16
  30. 2.09
  31. 0.32
  32. 28.86
  33. 0.405
  34. 1.071
  35. 0.396
  36. 2.376
  37. 0.648
  38. 4.41
  39. 0.336
  40. 0.616

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