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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 419 · 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. 1.0.27 × 0.9 =
  2. 2.1.2 × 1.3 =
  3. 3.1.1 × 0.7 =
  4. 4.0.95 × 1.8 =
  5. 5.0.02 × 0.2 =
  6. 6.0.09 × 3.5 =
  7. 7.4.1 × 0.23 =
  8. 8.0.65 × 0.9 =
  9. 9.0.7 × 2.9 =
  10. 10.0.91 × 0.5 =
  11. 11.7.2 × 0.36 =
  12. 12.4.1 × 0.7 =
  13. 13.9.5 × 0.27 =
  14. 14.8.2 × 1.9 =
  15. 15.2.3 × 0.09 =
  16. 16.7.4 × 0.07 =
  17. 17.8.6 × 3.9 =
  18. 18.3.1 × 2.8 =
  19. 19.0.16 × 2.3 =
  20. 20.0.15 × 1.7 =
  21. 21.0.6 × 0.38 =
  22. 22.3.1 × 2.1 =
  23. 23.1.4 × 0.9 =
  24. 24.0.66 × 2.4 =
  25. 25.0.09 × 1.9 =
  26. 26.0.46 × 2.8 =
  27. 27.4.9 × 0.39 =
  28. 28.2.8 × 0.05 =
  29. 29.5.6 × 0.9 =
  30. 30.0.47 × 2.8 =
  31. 31.1.3 × 1.2 =
  32. 32.4.1 × 0.03 =
  33. 33.0.8 × 0.18 =
  34. 34.0.5 × 2.1 =
  35. 35.1.7 × 1.2 =
  36. 36.0.32 × 1.2 =
  37. 37.6.4 × 0.13 =
  38. 38.0.61 × 3.1 =
  39. 39.0.25 × 2.3 =
  40. 40.5.4 × 0.35 =

Answer key

  1. 0.243
  2. 1.56
  3. 0.77
  4. 1.71
  5. 0.004
  6. 0.315
  7. 0.943
  8. 0.585
  9. 2.03
  10. 0.455
  11. 2.592
  12. 2.87
  13. 2.565
  14. 15.58
  15. 0.207
  16. 0.518
  17. 33.54
  18. 8.68
  19. 0.368
  20. 0.255
  21. 0.228
  22. 6.51
  23. 1.26
  24. 1.584
  25. 0.171
  26. 1.288
  27. 1.911
  28. 0.14
  29. 5.04
  30. 1.316
  31. 1.56
  32. 0.123
  33. 0.144
  34. 1.05
  35. 2.04
  36. 0.384
  37. 0.832
  38. 1.891
  39. 0.575
  40. 1.89

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