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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 851 · 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. 1.9.1 × 3.6 =
  2. 2.6.1 × 0.02 =
  3. 3.4.1 × 1.5 =
  4. 4.0.51 × 0.3 =
  5. 5.1.1 × 2.8 =
  6. 6.0.66 × 1.1 =
  7. 7.5.2 × 1.1 =
  8. 8.0.78 × 2.2 =
  9. 9.4.6 × 0.8 =
  10. 10.9.2 × 0.8 =
  11. 11.8.3 × 0.28 =
  12. 12.2.5 × 0.31 =
  13. 13.0.59 × 3.4 =
  14. 14.0.51 × 1.7 =
  15. 15.0.46 × 2.3 =
  16. 16.0.21 × 3.9 =
  17. 17.2.8 × 0.18 =
  18. 18.0.8 × 0.29 =
  19. 19.0.27 × 2.4 =
  20. 20.0.88 × 1.5 =
  21. 21.5.3 × 0.09 =
  22. 22.0.7 × 0.6 =
  23. 23.5.1 × 0.25 =
  24. 24.0.95 × 0.6 =
  25. 25.5.9 × 1.8 =
  26. 26.0.46 × 2.1 =
  27. 27.1.6 × 0.39 =
  28. 28.0.41 × 0.7 =
  29. 29.1.2 × 3.9 =
  30. 30.5.7 × 0.9 =
  31. 31.2.5 × 0.21 =
  32. 32.7.3 × 0.5 =
  33. 33.0.42 × 0.2 =
  34. 34.0.27 × 0.5 =
  35. 35.0.43 × 0.3 =
  36. 36.0.55 × 0.5 =
  37. 37.4.1 × 0.02 =
  38. 38.0.41 × 2.4 =
  39. 39.2.1 × 0.12 =
  40. 40.0.31 × 2.5 =

Answer key

  1. 32.76
  2. 0.122
  3. 6.15
  4. 0.153
  5. 3.08
  6. 0.726
  7. 5.72
  8. 1.716
  9. 3.68
  10. 7.36
  11. 2.324
  12. 0.775
  13. 2.006
  14. 0.867
  15. 1.058
  16. 0.819
  17. 0.504
  18. 0.232
  19. 0.648
  20. 1.32
  21. 0.477
  22. 0.42
  23. 1.275
  24. 0.57
  25. 10.62
  26. 0.966
  27. 0.624
  28. 0.287
  29. 4.68
  30. 5.13
  31. 0.525
  32. 3.65
  33. 0.084
  34. 0.135
  35. 0.129
  36. 0.275
  37. 0.082
  38. 0.984
  39. 0.252
  40. 0.775

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