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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 956 · 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. 1.0.51 × 0.5 =
  2. 2.0.54 × 1.5 =
  3. 3.1.7 × 0.09 =
  4. 4.3.3 × 0.07 =
  5. 5.3.8 × 2.7 =
  6. 6.0.99 × 0.8 =
  7. 7.3.8 × 0.29 =
  8. 8.0.53 × 2.2 =
  9. 9.0.9 × 3.1 =
  10. 10.4.5 × 0.11 =
  11. 11.4.7 × 1.2 =
  12. 12.0.15 × 3.1 =
  13. 13.0.89 × 1.2 =
  14. 14.2.4 × 0.22 =
  15. 15.0.03 × 0.9 =
  16. 16.1.5 × 0.39 =
  17. 17.8.4 × 3.5 =
  18. 18.5.5 × 0.31 =
  19. 19.0.17 × 3.5 =
  20. 20.6.9 × 2.1 =
  21. 21.4.1 × 0.36 =
  22. 22.0.59 × 1.1 =
  23. 23.0.26 × 3.8 =
  24. 24.9.3 × 0.29 =
  25. 25.5.3 × 1.9 =
  26. 26.0.33 × 0.2 =
  27. 27.0.2 × 0.8 =
  28. 28.4.1 × 0.34 =
  29. 29.0.95 × 2.5 =
  30. 30.7.2 × 3.7 =
  31. 31.1.4 × 2.8 =
  32. 32.7.1 × 0.06 =
  33. 33.0.3 × 0.7 =
  34. 34.0.21 × 3.9 =
  35. 35.0.76 × 1.4 =
  36. 36.0.93 × 3.4 =
  37. 37.7.8 × 1.1 =
  38. 38.7.6 × 0.23 =
  39. 39.1.2 × 0.07 =
  40. 40.5.5 × 0.26 =

Answer key

  1. 0.255
  2. 0.81
  3. 0.153
  4. 0.231
  5. 10.26
  6. 0.792
  7. 1.102
  8. 1.166
  9. 2.79
  10. 0.495
  11. 5.64
  12. 0.465
  13. 1.068
  14. 0.528
  15. 0.027
  16. 0.585
  17. 29.4
  18. 1.705
  19. 0.595
  20. 14.49
  21. 1.476
  22. 0.649
  23. 0.988
  24. 2.697
  25. 10.07
  26. 0.066
  27. 0.16
  28. 1.394
  29. 2.375
  30. 26.64
  31. 3.92
  32. 0.426
  33. 0.21
  34. 0.819
  35. 1.064
  36. 3.162
  37. 8.58
  38. 1.748
  39. 0.084
  40. 1.43

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