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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 949 · 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. 1.4.4 × 3.6 =
  2. 2.0.42 × 0.7 =
  3. 3.0.85 × 2.4 =
  4. 4.0.86 × 1.6 =
  5. 5.9.9 × 0.3 =
  6. 6.5.8 × 0.08 =
  7. 7.6.1 × 3.3 =
  8. 8.1.9 × 0.26 =
  9. 9.5.2 × 0.22 =
  10. 10.9.1 × 0.07 =
  11. 11.0.38 × 0.9 =
  12. 12.0.06 × 3.1 =
  13. 13.0.8 × 0.9 =
  14. 14.4.1 × 0.39 =
  15. 15.0.09 × 0.7 =
  16. 16.5.6 × 0.02 =
  17. 17.9.3 × 0.38 =
  18. 18.5.6 × 1.1 =
  19. 19.2.7 × 0.8 =
  20. 20.3.3 × 2.3 =
  21. 21.3.9 × 3.3 =
  22. 22.7.3 × 1.1 =
  23. 23.5.1 × 1.7 =
  24. 24.0.35 × 2.1 =
  25. 25.7.5 × 0.29 =
  26. 26.1.2 × 0.02 =
  27. 27.4.1 × 0.29 =
  28. 28.0.3 × 0.3 =
  29. 29.4.4 × 1.2 =
  30. 30.0.07 × 3.1 =
  31. 31.0.81 × 0.5 =
  32. 32.0.48 × 3.8 =
  33. 33.5.7 × 1.8 =
  34. 34.5.5 × 0.5 =
  35. 35.9.8 × 0.31 =
  36. 36.0.07 × 1.1 =
  37. 37.0.99 × 2.4 =
  38. 38.0.24 × 3.4 =
  39. 39.0.8 × 0.2 =
  40. 40.0.43 × 1.4 =

Answer key

  1. 15.84
  2. 0.294
  3. 2.04
  4. 1.376
  5. 2.97
  6. 0.464
  7. 20.13
  8. 0.494
  9. 1.144
  10. 0.637
  11. 0.342
  12. 0.186
  13. 0.72
  14. 1.599
  15. 0.063
  16. 0.112
  17. 3.534
  18. 6.16
  19. 2.16
  20. 7.59
  21. 12.87
  22. 8.03
  23. 8.67
  24. 0.735
  25. 2.175
  26. 0.024
  27. 1.189
  28. 0.09
  29. 5.28
  30. 0.217
  31. 0.405
  32. 1.824
  33. 10.26
  34. 2.75
  35. 3.038
  36. 0.077
  37. 2.376
  38. 0.816
  39. 0.16
  40. 0.602

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