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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 230 · 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. 1.0.06 × 3.5 =
  2. 2.5.7 × 0.21 =
  3. 3.0.74 × 0.5 =
  4. 4.0.4 × 0.11 =
  5. 5.2.3 × 3.2 =
  6. 6.1.3 × 0.22 =
  7. 7.0.12 × 3.8 =
  8. 8.1.8 × 3.4 =
  9. 9.0.54 × 3.5 =
  10. 10.8.8 × 3.1 =
  11. 11.0.86 × 3.1 =
  12. 12.4.4 × 1.8 =
  13. 13.1.8 × 0.03 =
  14. 14.1.1 × 0.14 =
  15. 15.3.1 × 2.1 =
  16. 16.0.17 × 2.3 =
  17. 17.0.19 × 2.2 =
  18. 18.0.98 × 1.3 =
  19. 19.0.75 × 1.8 =
  20. 20.1.3 × 0.03 =
  21. 21.0.62 × 1.6 =
  22. 22.2.6 × 2.8 =
  23. 23.0.04 × 2.9 =
  24. 24.6.1 × 0.19 =
  25. 25.0.59 × 1.3 =
  26. 26.1.1 × 3.4 =
  27. 27.8.1 × 3.7 =
  28. 28.0.35 × 1.5 =
  29. 29.2.2 × 0.02 =
  30. 30.4.6 × 0.34 =
  31. 31.0.28 × 3.3 =
  32. 32.0.66 × 2.4 =
  33. 33.0.86 × 3.7 =
  34. 34.3.4 × 0.5 =
  35. 35.0.71 × 1.7 =
  36. 36.7.9 × 0.02 =
  37. 37.8.5 × 2.8 =
  38. 38.2.3 × 2.6 =
  39. 39.5.1 × 0.08 =
  40. 40.1.5 × 0.05 =

Answer key

  1. 0.21
  2. 1.197
  3. 0.37
  4. 0.044
  5. 7.36
  6. 0.286
  7. 0.456
  8. 6.12
  9. 1.89
  10. 27.28
  11. 2.666
  12. 7.92
  13. 0.054
  14. 0.154
  15. 6.51
  16. 0.391
  17. 0.418
  18. 1.274
  19. 1.35
  20. 0.039
  21. 0.992
  22. 7.28
  23. 0.116
  24. 1.159
  25. 0.767
  26. 3.74
  27. 29.97
  28. 0.525
  29. 0.044
  30. 1.564
  31. 0.924
  32. 1.584
  33. 3.182
  34. 1.7
  35. 1.207
  36. 0.158
  37. 23.8
  38. 5.98
  39. 0.408
  40. 0.075

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