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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 746 · 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. 1.0.74 × 3.3 =
  2. 2.6.9 × 0.15 =
  3. 3.0.5 × 0.31 =
  4. 4.8.4 × 0.39 =
  5. 5.3.3 × 0.07 =
  6. 6.1.5 × 1.1 =
  7. 7.0.84 × 0.4 =
  8. 8.0.58 × 1.6 =
  9. 9.9.5 × 0.35 =
  10. 10.0.32 × 0.4 =
  11. 11.0.55 × 0.6 =
  12. 12.2.6 × 0.19 =
  13. 13.0.34 × 2.4 =
  14. 14.0.93 × 1.1 =
  15. 15.0.88 × 0.8 =
  16. 16.6.6 × 1.5 =
  17. 17.6.8 × 0.16 =
  18. 18.7.5 × 1.8 =
  19. 19.4.4 × 0.27 =
  20. 20.1.3 × 1.1 =
  21. 21.0.91 × 3.9 =
  22. 22.2.9 × 0.08 =
  23. 23.3.5 × 2.2 =
  24. 24.0.04 × 1.1 =
  25. 25.0.56 × 1.3 =
  26. 26.0.11 × 0.7 =
  27. 27.7.1 × 3.8 =
  28. 28.0.11 × 3.8 =
  29. 29.0.94 × 2.5 =
  30. 30.0.22 × 3.5 =
  31. 31.4.7 × 1.7 =
  32. 32.0.55 × 1.5 =
  33. 33.5.3 × 0.28 =
  34. 34.6.3 × 0.38 =
  35. 35.0.91 × 3.4 =
  36. 36.4.3 × 0.31 =
  37. 37.0.31 × 3.9 =
  38. 38.0.91 × 1.1 =
  39. 39.0.11 × 3.7 =
  40. 40.0.9 × 1.8 =

Answer key

  1. 2.442
  2. 1.035
  3. 0.155
  4. 3.276
  5. 0.231
  6. 1.65
  7. 0.336
  8. 0.928
  9. 3.325
  10. 0.128
  11. 0.33
  12. 0.494
  13. 0.816
  14. 1.023
  15. 0.704
  16. 9.9
  17. 1.088
  18. 13.5
  19. 1.188
  20. 1.43
  21. 3.549
  22. 0.232
  23. 7.7
  24. 0.044
  25. 0.728
  26. 0.077
  27. 26.98
  28. 0.418
  29. 2.35
  30. 0.77
  31. 7.99
  32. 0.825
  33. 1.484
  34. 2.394
  35. 3.094
  36. 1.333
  37. 1.209
  38. 1.001
  39. 0.407
  40. 1.62

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