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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 346 · 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. 1.1.5 × 2.8 =
  2. 2.6.9 × 3.2 =
  3. 3.3.3 × 0.26 =
  4. 4.0.54 × 2.6 =
  5. 5.0.5 × 2.1 =
  6. 6.1.1 × 0.8 =
  7. 7.0.02 × 2.3 =
  8. 8.0.04 × 1.4 =
  9. 9.9.1 × 3.7 =
  10. 10.5.6 × 0.9 =
  11. 11.7.1 × 0.07 =
  12. 12.7.7 × 3.4 =
  13. 13.4.9 × 2.1 =
  14. 14.0.03 × 3.2 =
  15. 15.8.1 × 0.07 =
  16. 16.0.37 × 0.4 =
  17. 17.3.1 × 0.06 =
  18. 18.9.5 × 2.2 =
  19. 19.0.27 × 3.5 =
  20. 20.3.8 × 2.6 =
  21. 21.0.78 × 0.7 =
  22. 22.9.2 × 0.16 =
  23. 23.1.7 × 0.3 =
  24. 24.0.41 × 1.5 =
  25. 25.0.6 × 0.7 =
  26. 26.0.79 × 0.4 =
  27. 27.2.7 × 3.6 =
  28. 28.2.1 × 0.12 =
  29. 29.8.1 × 0.21 =
  30. 30.0.95 × 0.6 =
  31. 31.6.6 × 0.6 =
  32. 32.0.22 × 3.8 =
  33. 33.0.11 × 1.1 =
  34. 34.6.8 × 0.06 =
  35. 35.6.7 × 3.1 =
  36. 36.3.4 × 0.29 =
  37. 37.0.87 × 2.4 =
  38. 38.0.59 × 1.1 =
  39. 39.7.9 × 0.18 =
  40. 40.0.27 × 1.4 =

Answer key

  1. 4.2
  2. 22.08
  3. 0.858
  4. 1.404
  5. 1.05
  6. 0.88
  7. 0.046
  8. 0.056
  9. 33.67
  10. 5.04
  11. 0.497
  12. 26.18
  13. 10.29
  14. 0.096
  15. 0.567
  16. 0.148
  17. 0.186
  18. 20.9
  19. 0.945
  20. 9.88
  21. 0.546
  22. 1.472
  23. 0.51
  24. 0.615
  25. 0.42
  26. 0.316
  27. 9.72
  28. 0.252
  29. 1.701
  30. 0.57
  31. 3.96
  32. 0.836
  33. 0.121
  34. 0.408
  35. 20.77
  36. 0.986
  37. 2.088
  38. 0.649
  39. 1.422
  40. 0.378

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