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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 148 · 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. 1.8.1 × 2.3 =
  2. 2.6.4 × 0.5 =
  3. 3.5.9 × 0.25 =
  4. 4.0.21 × 0.5 =
  5. 5.0.82 × 2.2 =
  6. 6.9.9 × 0.4 =
  7. 7.1.9 × 2.6 =
  8. 8.0.44 × 2.6 =
  9. 9.2.5 × 2.9 =
  10. 10.0.33 × 2.2 =
  11. 11.8.1 × 0.16 =
  12. 12.0.73 × 2.2 =
  13. 13.0.94 × 1.2 =
  14. 14.0.15 × 0.6 =
  15. 15.0.72 × 1.1 =
  16. 16.0.81 × 3.1 =
  17. 17.8.5 × 3.8 =
  18. 18.0.08 × 3.4 =
  19. 19.0.28 × 2.4 =
  20. 20.0.29 × 0.3 =
  21. 21.0.81 × 2.9 =
  22. 22.2.9 × 0.28 =
  23. 23.3.2 × 0.07 =
  24. 24.0.13 × 3.7 =
  25. 25.4.4 × 1.5 =
  26. 26.7.1 × 2.6 =
  27. 27.0.07 × 0.2 =
  28. 28.0.52 × 1.1 =
  29. 29.6.4 × 0.31 =
  30. 30.0.22 × 3.6 =
  31. 31.4.8 × 2.9 =
  32. 32.0.52 × 2.8 =
  33. 33.9.2 × 3.9 =
  34. 34.3.1 × 2.1 =
  35. 35.0.86 × 2.6 =
  36. 36.0.14 × 1.8 =
  37. 37.0.13 × 3.1 =
  38. 38.0.8 × 0.05 =
  39. 39.4.3 × 0.19 =
  40. 40.6.1 × 3.3 =

Answer key

  1. 18.63
  2. 3.2
  3. 1.475
  4. 0.105
  5. 1.804
  6. 3.96
  7. 4.94
  8. 1.144
  9. 7.25
  10. 0.726
  11. 1.296
  12. 1.606
  13. 1.128
  14. 0.09
  15. 0.792
  16. 2.511
  17. 32.3
  18. 0.272
  19. 0.672
  20. 0.087
  21. 2.349
  22. 0.812
  23. 0.224
  24. 0.481
  25. 6.6
  26. 18.46
  27. 0.014
  28. 0.572
  29. 1.984
  30. 0.792
  31. 13.92
  32. 1.456
  33. 35.88
  34. 6.51
  35. 2.236
  36. 0.252
  37. 0.403
  38. 0.04
  39. 0.817
  40. 20.13

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