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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 381 · 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. 1.0.4 × 0.12 =
  2. 2.0.69 × 3.4 =
  3. 3.0.9 × 3.7 =
  4. 4.8.9 × 0.4 =
  5. 5.3.1 × 0.3 =
  6. 6.0.6 × 0.14 =
  7. 7.0.09 × 3.5 =
  8. 8.2.7 × 0.06 =
  9. 9.0.32 × 2.3 =
  10. 10.4.4 × 3.8 =
  11. 11.4.1 × 2.4 =
  12. 12.0.34 × 0.9 =
  13. 13.0.39 × 2.7 =
  14. 14.0.04 × 0.7 =
  15. 15.0.63 × 2.6 =
  16. 16.0.07 × 2.7 =
  17. 17.0.42 × 2.8 =
  18. 18.9.1 × 3.5 =
  19. 19.0.61 × 1.4 =
  20. 20.9.6 × 3.1 =
  21. 21.0.71 × 3.3 =
  22. 22.0.82 × 0.3 =
  23. 23.0.16 × 2.8 =
  24. 24.0.62 × 1.2 =
  25. 25.8.1 × 2.1 =
  26. 26.9.1 × 3.3 =
  27. 27.0.44 × 2.3 =
  28. 28.0.51 × 0.7 =
  29. 29.0.67 × 1.6 =
  30. 30.2.4 × 0.02 =
  31. 31.0.86 × 3.2 =
  32. 32.0.3 × 0.38 =
  33. 33.0.5 × 1.1 =
  34. 34.9.1 × 0.29 =
  35. 35.0.5 × 0.04 =
  36. 36.4.5 × 0.16 =
  37. 37.4.4 × 0.7 =
  38. 38.0.93 × 0.3 =
  39. 39.0.17 × 2.9 =
  40. 40.8.4 × 0.9 =

Answer key

  1. 0.048
  2. 2.346
  3. 3.33
  4. 3.56
  5. 0.93
  6. 0.084
  7. 0.315
  8. 0.162
  9. 0.736
  10. 16.72
  11. 9.84
  12. 0.306
  13. 1.053
  14. 0.028
  15. 1.638
  16. 0.189
  17. 1.176
  18. 31.85
  19. 0.854
  20. 29.76
  21. 2.343
  22. 0.246
  23. 0.448
  24. 0.744
  25. 17.01
  26. 30.03
  27. 1.012
  28. 0.357
  29. 1.072
  30. 0.048
  31. 2.752
  32. 0.114
  33. 0.55
  34. 2.639
  35. 0.02
  36. 0.72
  37. 3.08
  38. 0.279
  39. 0.493
  40. 7.56

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