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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 442 · 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. 1.2.8 × 0.28 =
  2. 2.9.4 × 0.02 =
  3. 3.0.41 × 0.9 =
  4. 4.2.6 × 0.11 =
  5. 5.0.49 × 3.1 =
  6. 6.8.1 × 0.19 =
  7. 7.0.31 × 2.7 =
  8. 8.0.07 × 3.1 =
  9. 9.0.04 × 0.3 =
  10. 10.1.1 × 0.04 =
  11. 11.6.3 × 0.37 =
  12. 12.4.8 × 2.1 =
  13. 13.0.21 × 2.1 =
  14. 14.0.16 × 1.2 =
  15. 15.0.97 × 2.2 =
  16. 16.7.4 × 2.8 =
  17. 17.8.7 × 0.15 =
  18. 18.2.1 × 3.8 =
  19. 19.0.71 × 0.9 =
  20. 20.0.33 × 1.8 =
  21. 21.3.5 × 0.39 =
  22. 22.3.5 × 0.5 =
  23. 23.0.5 × 2.1 =
  24. 24.5.9 × 0.9 =
  25. 25.0.9 × 0.35 =
  26. 26.5.6 × 0.24 =
  27. 27.0.94 × 1.3 =
  28. 28.2.4 × 3.7 =
  29. 29.4.1 × 1.6 =
  30. 30.0.2 × 0.26 =
  31. 31.0.97 × 2.7 =
  32. 32.0.05 × 3.6 =
  33. 33.1.3 × 0.16 =
  34. 34.7.6 × 1.8 =
  35. 35.0.14 × 1.4 =
  36. 36.0.55 × 2.2 =
  37. 37.3.9 × 3.8 =
  38. 38.5.1 × 0.21 =
  39. 39.5.6 × 0.23 =
  40. 40.1.2 × 0.29 =

Answer key

  1. 0.784
  2. 0.188
  3. 0.369
  4. 0.286
  5. 1.519
  6. 1.539
  7. 0.837
  8. 0.217
  9. 0.012
  10. 0.044
  11. 2.331
  12. 10.08
  13. 0.441
  14. 0.192
  15. 2.134
  16. 20.72
  17. 1.305
  18. 7.98
  19. 0.639
  20. 0.594
  21. 1.365
  22. 1.75
  23. 1.05
  24. 5.31
  25. 0.315
  26. 1.344
  27. 1.222
  28. 8.88
  29. 6.56
  30. 0.052
  31. 2.619
  32. 0.18
  33. 0.208
  34. 13.68
  35. 0.196
  36. 1.21
  37. 14.82
  38. 1.071
  39. 1.288
  40. 0.348

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