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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 297 · 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. 1.0.69 × 0.6 =
  2. 2.0.59 × 3.9 =
  3. 3.0.38 × 3.3 =
  4. 4.0.02 × 0.8 =
  5. 5.4.1 × 2.5 =
  6. 6.9.8 × 0.21 =
  7. 7.0.5 × 0.8 =
  8. 8.0.85 × 2.2 =
  9. 9.1.3 × 0.11 =
  10. 10.0.81 × 2.3 =
  11. 11.3.1 × 0.12 =
  12. 12.3.5 × 2.6 =
  13. 13.0.32 × 1.5 =
  14. 14.8.5 × 0.31 =
  15. 15.0.51 × 1.9 =
  16. 16.0.42 × 0.8 =
  17. 17.3.1 × 0.9 =
  18. 18.0.65 × 2.1 =
  19. 19.0.51 × 0.5 =
  20. 20.0.28 × 0.9 =
  21. 21.0.87 × 1.8 =
  22. 22.9.7 × 2.9 =
  23. 23.0.17 × 1.5 =
  24. 24.1.3 × 3.5 =
  25. 25.0.26 × 0.7 =
  26. 26.0.87 × 2.1 =
  27. 27.1.2 × 0.36 =
  28. 28.3.3 × 0.08 =
  29. 29.5.1 × 0.19 =
  30. 30.4.2 × 0.22 =
  31. 31.1.5 × 0.11 =
  32. 32.0.4 × 1.1 =
  33. 33.0.64 × 1.8 =
  34. 34.0.2 × 0.8 =
  35. 35.0.4 × 0.21 =
  36. 36.0.16 × 3.8 =
  37. 37.2.7 × 3.5 =
  38. 38.0.36 × 2.4 =
  39. 39.0.61 × 3.5 =
  40. 40.4.2 × 0.15 =

Answer key

  1. 0.414
  2. 2.301
  3. 1.254
  4. 0.016
  5. 10.25
  6. 2.058
  7. 0.4
  8. 1.87
  9. 0.143
  10. 1.863
  11. 0.372
  12. 9.1
  13. 0.48
  14. 2.635
  15. 0.969
  16. 0.336
  17. 2.79
  18. 1.365
  19. 0.255
  20. 0.252
  21. 1.566
  22. 28.13
  23. 0.255
  24. 4.55
  25. 0.182
  26. 1.827
  27. 0.432
  28. 0.264
  29. 0.969
  30. 0.924
  31. 0.165
  32. 0.44
  33. 1.152
  34. 0.16
  35. 0.084
  36. 0.608
  37. 9.45
  38. 0.864
  39. 2.135
  40. 0.63

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