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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 363 · 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. 1.1.1 × 3.2 =
  2. 2.7.1 × 2.1 =
  3. 3.0.55 × 0.8 =
  4. 4.0.07 × 0.4 =
  5. 5.0.08 × 0.3 =
  6. 6.5.1 × 1.9 =
  7. 7.0.71 × 2.8 =
  8. 8.0.13 × 1.2 =
  9. 9.2.1 × 0.33 =
  10. 10.0.14 × 0.7 =
  11. 11.0.34 × 3.7 =
  12. 12.3.3 × 0.16 =
  13. 13.8.1 × 0.9 =
  14. 14.0.08 × 0.5 =
  15. 15.0.25 × 0.2 =
  16. 16.0.18 × 2.2 =
  17. 17.0.36 × 1.1 =
  18. 18.4.3 × 2.5 =
  19. 19.4.7 × 3.6 =
  20. 20.9.6 × 1.5 =
  21. 21.0.22 × 1.3 =
  22. 22.4.7 × 0.22 =
  23. 23.0.3 × 0.15 =
  24. 24.8.2 × 0.13 =
  25. 25.0.63 × 1.2 =
  26. 26.0.27 × 2.1 =
  27. 27.0.51 × 3.3 =
  28. 28.0.73 × 2.3 =
  29. 29.4.7 × 1.1 =
  30. 30.0.72 × 3.8 =
  31. 31.6.4 × 3.1 =
  32. 32.0.24 × 2.9 =
  33. 33.5.7 × 1.5 =
  34. 34.0.89 × 2.3 =
  35. 35.0.6 × 0.7 =
  36. 36.0.05 × 0.8 =
  37. 37.0.41 × 3.2 =
  38. 38.7.1 × 0.09 =
  39. 39.0.16 × 2.1 =
  40. 40.1.8 × 0.22 =

Answer key

  1. 3.52
  2. 14.91
  3. 0.44
  4. 0.028
  5. 0.024
  6. 9.69
  7. 1.988
  8. 0.156
  9. 0.693
  10. 0.098
  11. 1.258
  12. 0.528
  13. 7.29
  14. 0.04
  15. 0.05
  16. 0.396
  17. 0.396
  18. 10.75
  19. 16.92
  20. 14.4
  21. 0.286
  22. 1.034
  23. 0.045
  24. 1.066
  25. 0.756
  26. 0.567
  27. 1.683
  28. 1.679
  29. 5.17
  30. 2.736
  31. 19.84
  32. 0.696
  33. 8.55
  34. 2.047
  35. 0.42
  36. 0.04
  37. 1.312
  38. 0.639
  39. 0.336
  40. 0.396

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