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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 376 · 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. 1.0.21 × 3.8 =
  2. 2.0.71 × 2.5 =
  3. 3.0.61 × 1.9 =
  4. 4.0.19 × 1.2 =
  5. 5.7.8 × 2.1 =
  6. 6.8.2 × 3.4 =
  7. 7.0.15 × 3.1 =
  8. 8.0.66 × 1.5 =
  9. 9.0.09 × 3.1 =
  10. 10.6.9 × 3.7 =
  11. 11.9.2 × 0.11 =
  12. 12.0.57 × 1.1 =
  13. 13.0.95 × 3.1 =
  14. 14.7.1 × 0.2 =
  15. 15.0.4 × 0.05 =
  16. 16.8.2 × 1.9 =
  17. 17.7.2 × 0.3 =
  18. 18.0.46 × 1.6 =
  19. 19.6.4 × 0.11 =
  20. 20.6.7 × 0.26 =
  21. 21.0.03 × 1.1 =
  22. 22.5.2 × 0.05 =
  23. 23.3.8 × 0.11 =
  24. 24.7.2 × 3.4 =
  25. 25.3.1 × 0.24 =
  26. 26.0.81 × 0.8 =
  27. 27.0.97 × 2.7 =
  28. 28.0.37 × 2.9 =
  29. 29.0.17 × 2.9 =
  30. 30.0.26 × 1.5 =
  31. 31.0.32 × 0.2 =
  32. 32.2.6 × 0.11 =
  33. 33.5.2 × 1.5 =
  34. 34.0.07 × 2.6 =
  35. 35.8.4 × 0.11 =
  36. 36.0.71 × 3.4 =
  37. 37.2.9 × 3.1 =
  38. 38.0.05 × 1.3 =
  39. 39.0.72 × 1.5 =
  40. 40.4.5 × 0.7 =

Answer key

  1. 0.798
  2. 1.775
  3. 1.159
  4. 0.228
  5. 16.38
  6. 27.88
  7. 0.465
  8. 0.99
  9. 0.279
  10. 25.53
  11. 1.012
  12. 0.627
  13. 2.945
  14. 1.42
  15. 0.02
  16. 15.58
  17. 2.16
  18. 0.736
  19. 0.704
  20. 1.742
  21. 0.033
  22. 0.26
  23. 0.418
  24. 24.48
  25. 0.744
  26. 0.648
  27. 2.619
  28. 1.073
  29. 0.493
  30. 0.39
  31. 0.064
  32. 0.286
  33. 7.8
  34. 0.182
  35. 0.924
  36. 2.414
  37. 8.99
  38. 0.065
  39. 1.08
  40. 3.15

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