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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 147 · 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. 1.0.64 × 1.8 =
  2. 2.0.11 × 2.1 =
  3. 3.0.5 × 0.17 =
  4. 4.0.4 × 0.24 =
  5. 5.0.08 × 3.1 =
  6. 6.0.48 × 1.5 =
  7. 7.0.92 × 2.1 =
  8. 8.0.81 × 0.3 =
  9. 9.0.74 × 1.5 =
  10. 10.0.88 × 0.3 =
  11. 11.9.7 × 2.8 =
  12. 12.6.2 × 0.12 =
  13. 13.9.6 × 0.09 =
  14. 14.0.71 × 1.9 =
  15. 15.0.68 × 2.3 =
  16. 16.4.1 × 0.35 =
  17. 17.9.1 × 1.3 =
  18. 18.7.7 × 2.1 =
  19. 19.0.68 × 0.6 =
  20. 20.7.2 × 0.13 =
  21. 21.0.32 × 0.3 =
  22. 22.4.1 × 3.8 =
  23. 23.0.25 × 1.1 =
  24. 24.6.3 × 3.2 =
  25. 25.0.04 × 0.3 =
  26. 26.3.1 × 0.31 =
  27. 27.2.7 × 0.13 =
  28. 28.6.3 × 1.1 =
  29. 29.4.2 × 1.1 =
  30. 30.3.4 × 0.09 =
  31. 31.2.6 × 2.7 =
  32. 32.0.16 × 0.4 =
  33. 33.0.26 × 3.3 =
  34. 34.5.8 × 2.2 =
  35. 35.0.93 × 0.5 =
  36. 36.9.6 × 0.02 =
  37. 37.6.8 × 0.2 =
  38. 38.3.3 × 2.9 =
  39. 39.0.33 × 3.8 =
  40. 40.2.9 × 0.05 =

Answer key

  1. 1.152
  2. 0.231
  3. 0.085
  4. 0.096
  5. 0.248
  6. 0.72
  7. 1.932
  8. 0.243
  9. 1.11
  10. 0.264
  11. 27.16
  12. 0.744
  13. 0.864
  14. 1.349
  15. 1.564
  16. 1.435
  17. 11.83
  18. 16.17
  19. 0.408
  20. 0.936
  21. 0.096
  22. 15.58
  23. 0.275
  24. 20.16
  25. 0.012
  26. 0.961
  27. 0.351
  28. 6.93
  29. 4.62
  30. 0.306
  31. 7.02
  32. 0.064
  33. 0.858
  34. 12.76
  35. 0.465
  36. 0.192
  37. 1.36
  38. 9.57
  39. 1.254
  40. 0.145

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