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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 232 · 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. 1.0.84 × 1.1 =
  2. 2.0.65 × 2.2 =
  3. 3.0.11 × 3.5 =
  4. 4.8.3 × 3.4 =
  5. 5.0.72 × 3.9 =
  6. 6.0.26 × 2.1 =
  7. 7.0.99 × 3.9 =
  8. 8.6.5 × 0.22 =
  9. 9.0.67 × 3.1 =
  10. 10.4.4 × 1.7 =
  11. 11.0.77 × 0.5 =
  12. 12.7.1 × 3.4 =
  13. 13.5.1 × 0.02 =
  14. 14.0.51 × 3.9 =
  15. 15.0.06 × 0.7 =
  16. 16.0.33 × 1.1 =
  17. 17.3.1 × 0.02 =
  18. 18.0.89 × 0.5 =
  19. 19.1.8 × 0.39 =
  20. 20.1.1 × 0.29 =
  21. 21.0.43 × 3.9 =
  22. 22.7.7 × 2.1 =
  23. 23.0.31 × 1.1 =
  24. 24.3.2 × 0.08 =
  25. 25.6.9 × 0.38 =
  26. 26.0.71 × 3.2 =
  27. 27.3.1 × 1.3 =
  28. 28.0.34 × 3.6 =
  29. 29.9.1 × 0.6 =
  30. 30.0.74 × 1.2 =
  31. 31.0.98 × 2.1 =
  32. 32.0.31 × 1.2 =
  33. 33.0.77 × 0.3 =
  34. 34.1.8 × 0.11 =
  35. 35.9.6 × 0.13 =
  36. 36.0.32 × 1.5 =
  37. 37.7.3 × 3.8 =
  38. 38.7.4 × 0.8 =
  39. 39.0.47 × 2.6 =
  40. 40.0.39 × 1.5 =

Answer key

  1. 0.924
  2. 1.43
  3. 0.385
  4. 28.22
  5. 2.808
  6. 0.546
  7. 3.861
  8. 1.43
  9. 2.077
  10. 7.48
  11. 0.385
  12. 24.14
  13. 0.102
  14. 1.989
  15. 0.042
  16. 0.363
  17. 0.062
  18. 0.445
  19. 0.702
  20. 0.319
  21. 1.677
  22. 16.17
  23. 0.341
  24. 0.256
  25. 2.622
  26. 2.272
  27. 4.03
  28. 1.224
  29. 5.46
  30. 0.888
  31. 2.058
  32. 0.372
  33. 0.231
  34. 0.198
  35. 1.248
  36. 0.48
  37. 27.74
  38. 5.92
  39. 1.222
  40. 0.585

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