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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 616 · 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. 1.4.7 × 0.5 =
  2. 2.0.6 × 2.2 =
  3. 3.0.09 × 3.6 =
  4. 4.8.2 × 3.7 =
  5. 5.0.75 × 1.4 =
  6. 6.0.95 × 2.6 =
  7. 7.0.9 × 0.34 =
  8. 8.0.91 × 3.6 =
  9. 9.7.2 × 3.1 =
  10. 10.0.5 × 2.8 =
  11. 11.0.61 × 2.7 =
  12. 12.8.1 × 2.5 =
  13. 13.0.7 × 2.1 =
  14. 14.0.11 × 3.1 =
  15. 15.0.17 × 1.4 =
  16. 16.0.94 × 3.6 =
  17. 17.0.35 × 2.1 =
  18. 18.0.58 × 1.1 =
  19. 19.0.46 × 3.5 =
  20. 20.0.7 × 0.27 =
  21. 21.2.4 × 0.08 =
  22. 22.3.6 × 0.03 =
  23. 23.0.34 × 3.5 =
  24. 24.0.62 × 1.2 =
  25. 25.3.2 × 3.8 =
  26. 26.7.4 × 0.6 =
  27. 27.0.15 × 0.4 =
  28. 28.3.5 × 2.3 =
  29. 29.0.5 × 0.4 =
  30. 30.2.2 × 0.7 =
  31. 31.6.4 × 0.4 =
  32. 32.0.83 × 0.8 =
  33. 33.0.84 × 3.7 =
  34. 34.2.1 × 1.8 =
  35. 35.3.2 × 2.2 =
  36. 36.0.18 × 3.5 =
  37. 37.0.85 × 2.5 =
  38. 38.2.1 × 0.11 =
  39. 39.0.82 × 3.6 =
  40. 40.0.26 × 1.4 =

Answer key

  1. 2.35
  2. 1.32
  3. 0.324
  4. 30.34
  5. 1.05
  6. 2.47
  7. 0.306
  8. 3.276
  9. 22.32
  10. 1.4
  11. 1.647
  12. 20.25
  13. 1.47
  14. 0.341
  15. 0.238
  16. 3.384
  17. 0.735
  18. 0.638
  19. 1.61
  20. 0.189
  21. 0.192
  22. 0.108
  23. 1.19
  24. 0.744
  25. 12.16
  26. 4.44
  27. 0.06
  28. 8.05
  29. 0.2
  30. 1.54
  31. 2.56
  32. 0.664
  33. 3.108
  34. 3.78
  35. 7.04
  36. 0.63
  37. 2.125
  38. 0.231
  39. 2.952
  40. 0.364

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