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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 815 · 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. 1.0.56 × 1.3 =
  2. 2.3.7 × 0.19 =
  3. 3.8.2 × 1.9 =
  4. 4.6.1 × 1.3 =
  5. 5.6.3 × 2.1 =
  6. 6.0.35 × 1.3 =
  7. 7.4.5 × 3.4 =
  8. 8.7.7 × 2.9 =
  9. 9.0.7 × 0.14 =
  10. 10.7.3 × 0.2 =
  11. 11.8.4 × 3.4 =
  12. 12.0.47 × 3.1 =
  13. 13.0.67 × 0.4 =
  14. 14.0.04 × 0.5 =
  15. 15.0.71 × 1.1 =
  16. 16.0.43 × 1.1 =
  17. 17.3.4 × 3.1 =
  18. 18.0.77 × 3.5 =
  19. 19.0.47 × 2.4 =
  20. 20.0.13 × 3.1 =
  21. 21.3.2 × 0.07 =
  22. 22.0.74 × 3.1 =
  23. 23.9.8 × 2.4 =
  24. 24.0.13 × 2.2 =
  25. 25.5.9 × 0.15 =
  26. 26.0.4 × 2.1 =
  27. 27.4.1 × 0.21 =
  28. 28.9.1 × 0.12 =
  29. 29.0.88 × 2.3 =
  30. 30.0.82 × 0.6 =
  31. 31.7.4 × 0.39 =
  32. 32.0.32 × 3.4 =
  33. 33.0.89 × 3.7 =
  34. 34.1.5 × 0.38 =
  35. 35.0.69 × 1.1 =
  36. 36.0.02 × 2.9 =
  37. 37.0.59 × 3.9 =
  38. 38.4.1 × 0.16 =
  39. 39.8.1 × 3.5 =
  40. 40.4.1 × 0.25 =

Answer key

  1. 0.728
  2. 0.703
  3. 15.58
  4. 7.93
  5. 13.23
  6. 0.455
  7. 15.3
  8. 22.33
  9. 0.098
  10. 1.46
  11. 28.56
  12. 1.457
  13. 0.268
  14. 0.02
  15. 0.781
  16. 0.473
  17. 10.54
  18. 2.695
  19. 1.128
  20. 0.403
  21. 0.224
  22. 2.294
  23. 23.52
  24. 0.286
  25. 0.885
  26. 0.84
  27. 0.861
  28. 1.092
  29. 2.024
  30. 0.492
  31. 2.886
  32. 1.088
  33. 3.293
  34. 0.57
  35. 0.759
  36. 0.058
  37. 2.301
  38. 0.656
  39. 28.35
  40. 1.025

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