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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 659 · 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. 1.9.3 × 1.5 =
  2. 2.3.1 × 0.21 =
  3. 3.0.56 × 0.9 =
  4. 4.0.85 × 1.5 =
  5. 5.6.4 × 1.1 =
  6. 6.6.8 × 0.35 =
  7. 7.0.86 × 3.7 =
  8. 8.6.8 × 3.5 =
  9. 9.5.8 × 0.18 =
  10. 10.2.2 × 1.6 =
  11. 11.4.1 × 2.1 =
  12. 12.0.95 × 0.5 =
  13. 13.5.6 × 0.27 =
  14. 14.0.94 × 2.7 =
  15. 15.2.4 × 0.02 =
  16. 16.0.89 × 3.9 =
  17. 17.5.5 × 0.04 =
  18. 18.0.18 × 2.2 =
  19. 19.9.1 × 3.1 =
  20. 20.0.2 × 0.15 =
  21. 21.0.63 × 0.4 =
  22. 22.0.42 × 1.2 =
  23. 23.0.03 × 2.1 =
  24. 24.9.1 × 0.02 =
  25. 25.0.69 × 2.7 =
  26. 26.1.9 × 0.12 =
  27. 27.0.22 × 2.5 =
  28. 28.2.4 × 3.1 =
  29. 29.3.7 × 2.5 =
  30. 30.0.6 × 2.8 =
  31. 31.1.7 × 0.13 =
  32. 32.0.62 × 2.3 =
  33. 33.6.7 × 0.11 =
  34. 34.5.7 × 0.21 =
  35. 35.0.16 × 0.6 =
  36. 36.0.94 × 1.7 =
  37. 37.5.1 × 3.5 =
  38. 38.6.8 × 2.2 =
  39. 39.7.9 × 1.4 =
  40. 40.1.2 × 0.27 =

Answer key

  1. 13.95
  2. 0.651
  3. 0.504
  4. 1.275
  5. 7.04
  6. 2.38
  7. 3.182
  8. 23.8
  9. 1.044
  10. 3.52
  11. 8.61
  12. 0.475
  13. 1.512
  14. 2.538
  15. 0.048
  16. 3.471
  17. 0.22
  18. 0.396
  19. 28.21
  20. 0.03
  21. 0.252
  22. 0.504
  23. 0.063
  24. 0.182
  25. 1.863
  26. 0.228
  27. 0.55
  28. 7.44
  29. 9.25
  30. 1.68
  31. 0.221
  32. 1.426
  33. 0.737
  34. 1.197
  35. 0.096
  36. 1.598
  37. 17.85
  38. 14.96
  39. 11.06
  40. 0.324

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