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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 348 · 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. 1.0.33 × 3.1 =
  2. 2.1.4 × 0.21 =
  3. 3.0.49 × 1.4 =
  4. 4.9.2 × 0.3 =
  5. 5.4.4 × 3.1 =
  6. 6.8.2 × 0.5 =
  7. 7.0.07 × 3.5 =
  8. 8.0.28 × 0.4 =
  9. 9.0.67 × 2.2 =
  10. 10.9.1 × 0.15 =
  11. 11.0.35 × 1.4 =
  12. 12.8.3 × 1.7 =
  13. 13.0.99 × 3.2 =
  14. 14.0.93 × 3.5 =
  15. 15.0.56 × 1.8 =
  16. 16.0.54 × 3.9 =
  17. 17.4.9 × 0.09 =
  18. 18.0.26 × 2.1 =
  19. 19.0.98 × 3.5 =
  20. 20.3.3 × 2.6 =
  21. 21.9.7 × 0.18 =
  22. 22.0.2 × 0.21 =
  23. 23.0.6 × 2.2 =
  24. 24.4.6 × 0.13 =
  25. 25.5.5 × 0.28 =
  26. 26.5.1 × 0.9 =
  27. 27.7.6 × 0.5 =
  28. 28.7.1 × 2.3 =
  29. 29.0.32 × 3.6 =
  30. 30.3.3 × 1.3 =
  31. 31.5.3 × 0.6 =
  32. 32.0.27 × 3.6 =
  33. 33.0.36 × 3.9 =
  34. 34.9.5 × 0.08 =
  35. 35.6.1 × 0.27 =
  36. 36.0.2 × 0.02 =
  37. 37.0.36 × 3.9 =
  38. 38.0.16 × 1.8 =
  39. 39.6.2 × 0.6 =
  40. 40.0.76 × 0.7 =

Answer key

  1. 1.023
  2. 0.294
  3. 0.686
  4. 2.76
  5. 13.64
  6. 4.1
  7. 0.245
  8. 0.112
  9. 1.474
  10. 1.365
  11. 0.49
  12. 14.11
  13. 3.168
  14. 3.255
  15. 1.008
  16. 2.106
  17. 0.441
  18. 0.546
  19. 3.43
  20. 8.58
  21. 1.746
  22. 0.042
  23. 1.32
  24. 0.598
  25. 1.54
  26. 4.59
  27. 3.8
  28. 16.33
  29. 1.152
  30. 4.29
  31. 3.18
  32. 0.972
  33. 1.404
  34. 0.76
  35. 1.647
  36. 0.004
  37. 1.404
  38. 0.288
  39. 3.72
  40. 0.532

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