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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 279 · 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. 1.3.2 × 0.11 =
  2. 2.9.9 × 0.19 =
  3. 3.4.3 × 2.3 =
  4. 4.8.6 × 1.2 =
  5. 5.0.25 × 0.3 =
  6. 6.0.81 × 1.1 =
  7. 7.0.16 × 2.9 =
  8. 8.3.2 × 2.7 =
  9. 9.8.1 × 0.18 =
  10. 10.0.78 × 2.7 =
  11. 11.4.6 × 1.6 =
  12. 12.0.62 × 2.6 =
  13. 13.0.84 × 1.3 =
  14. 14.4.1 × 0.04 =
  15. 15.9.2 × 0.07 =
  16. 16.0.11 × 1.8 =
  17. 17.9.1 × 0.33 =
  18. 18.0.71 × 1.9 =
  19. 19.0.99 × 3.7 =
  20. 20.6.6 × 0.09 =
  21. 21.0.62 × 0.8 =
  22. 22.2.1 × 1.7 =
  23. 23.0.61 × 2.7 =
  24. 24.1.6 × 0.02 =
  25. 25.3.6 × 0.9 =
  26. 26.6.8 × 3.1 =
  27. 27.0.68 × 1.6 =
  28. 28.0.02 × 3.1 =
  29. 29.6.9 × 3.2 =
  30. 30.2.7 × 1.8 =
  31. 31.0.07 × 2.8 =
  32. 32.0.93 × 1.9 =
  33. 33.0.21 × 0.5 =
  34. 34.0.82 × 0.6 =
  35. 35.5.5 × 0.8 =
  36. 36.5.7 × 0.09 =
  37. 37.0.03 × 3.1 =
  38. 38.0.93 × 2.1 =
  39. 39.4.1 × 0.08 =
  40. 40.0.61 × 2.1 =

Answer key

  1. 0.352
  2. 1.881
  3. 9.89
  4. 10.32
  5. 0.075
  6. 0.891
  7. 0.464
  8. 8.64
  9. 1.458
  10. 2.106
  11. 7.36
  12. 1.612
  13. 1.092
  14. 0.164
  15. 0.644
  16. 0.198
  17. 3.003
  18. 1.349
  19. 3.663
  20. 0.594
  21. 0.496
  22. 3.57
  23. 1.647
  24. 0.032
  25. 3.24
  26. 21.08
  27. 1.088
  28. 0.062
  29. 22.08
  30. 4.86
  31. 0.196
  32. 1.767
  33. 0.105
  34. 0.492
  35. 4.4
  36. 0.513
  37. 0.093
  38. 1.953
  39. 0.328
  40. 1.281

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