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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 688 · 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. 1.9.9 × 0.6 =
  2. 2.0.3 × 1.9 =
  3. 3.4.1 × 0.28 =
  4. 4.0.69 × 0.8 =
  5. 5.0.86 × 0.4 =
  6. 6.1.9 × 1.5 =
  7. 7.0.59 × 2.4 =
  8. 8.0.09 × 2.4 =
  9. 9.0.67 × 1.5 =
  10. 10.1.8 × 0.08 =
  11. 11.1.2 × 0.16 =
  12. 12.6.5 × 3.9 =
  13. 13.0.24 × 2.4 =
  14. 14.9.3 × 0.07 =
  15. 15.0.04 × 1.1 =
  16. 16.3.4 × 0.12 =
  17. 17.0.86 × 3.9 =
  18. 18.2.6 × 1.6 =
  19. 19.2.9 × 1.1 =
  20. 20.0.2 × 0.37 =
  21. 21.8.6 × 1.8 =
  22. 22.0.05 × 2.1 =
  23. 23.2.2 × 3.1 =
  24. 24.7.9 × 0.6 =
  25. 25.0.9 × 2.8 =
  26. 26.0.2 × 2.1 =
  27. 27.1.2 × 0.25 =
  28. 28.0.67 × 1.5 =
  29. 29.0.07 × 1.4 =
  30. 30.0.7 × 0.35 =
  31. 31.0.33 × 2.9 =
  32. 32.2.5 × 2.6 =
  33. 33.2.8 × 0.09 =
  34. 34.4.9 × 0.28 =
  35. 35.5.1 × 0.11 =
  36. 36.0.03 × 0.8 =
  37. 37.0.91 × 2.1 =
  38. 38.8.1 × 0.4 =
  39. 39.0.62 × 2.8 =
  40. 40.1.8 × 0.37 =

Answer key

  1. 5.94
  2. 0.57
  3. 1.148
  4. 0.552
  5. 0.344
  6. 2.85
  7. 1.416
  8. 0.216
  9. 1.005
  10. 0.144
  11. 0.192
  12. 25.35
  13. 0.576
  14. 0.651
  15. 0.044
  16. 0.408
  17. 3.354
  18. 4.16
  19. 3.19
  20. 0.074
  21. 15.48
  22. 0.105
  23. 6.82
  24. 4.74
  25. 2.52
  26. 0.42
  27. 0.3
  28. 1.005
  29. 0.098
  30. 0.245
  31. 0.957
  32. 6.5
  33. 0.252
  34. 1.372
  35. 0.561
  36. 0.024
  37. 1.911
  38. 3.24
  39. 1.736
  40. 0.666

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