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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 104 · 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. 1.0.07 × 1.1 =
  2. 2.0.13 × 1.1 =
  3. 3.4.1 × 0.5 =
  4. 4.0.17 × 2.9 =
  5. 5.0.7 × 0.21 =
  6. 6.6.3 × 0.38 =
  7. 7.0.09 × 3.6 =
  8. 8.3.1 × 0.8 =
  9. 9.0.51 × 0.4 =
  10. 10.0.69 × 3.9 =
  11. 11.3.5 × 2.4 =
  12. 12.0.81 × 1.3 =
  13. 13.0.73 × 0.8 =
  14. 14.9.1 × 0.5 =
  15. 15.0.45 × 1.4 =
  16. 16.0.11 × 3.2 =
  17. 17.1.5 × 0.04 =
  18. 18.0.15 × 1.3 =
  19. 19.0.12 × 0.3 =
  20. 20.0.75 × 0.4 =
  21. 21.0.11 × 1.3 =
  22. 22.0.02 × 1.7 =
  23. 23.1.1 × 0.06 =
  24. 24.0.84 × 2.9 =
  25. 25.3.3 × 0.35 =
  26. 26.0.94 × 1.6 =
  27. 27.7.4 × 2.7 =
  28. 28.0.99 × 1.1 =
  29. 29.0.65 × 3.2 =
  30. 30.1.1 × 0.9 =
  31. 31.4.2 × 1.5 =
  32. 32.8.1 × 3.8 =
  33. 33.0.8 × 0.06 =
  34. 34.6.6 × 1.8 =
  35. 35.8.4 × 3.1 =
  36. 36.0.91 × 1.8 =
  37. 37.3.2 × 3.4 =
  38. 38.0.21 × 2.2 =
  39. 39.0.12 × 2.9 =
  40. 40.6.1 × 0.7 =

Answer key

  1. 0.077
  2. 0.143
  3. 2.05
  4. 0.493
  5. 0.147
  6. 2.394
  7. 0.324
  8. 2.48
  9. 0.204
  10. 2.691
  11. 8.4
  12. 1.053
  13. 0.584
  14. 4.55
  15. 0.63
  16. 0.352
  17. 0.06
  18. 0.195
  19. 0.036
  20. 0.3
  21. 0.143
  22. 0.034
  23. 0.066
  24. 2.436
  25. 1.155
  26. 1.504
  27. 19.98
  28. 1.089
  29. 2.08
  30. 0.99
  31. 6.3
  32. 30.78
  33. 0.048
  34. 11.88
  35. 26.04
  36. 1.638
  37. 10.88
  38. 0.462
  39. 0.348
  40. 4.27

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