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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 793 · 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 × 0.6 =
  2. 2.0.3 × 0.18 =
  3. 3.0.18 × 2.4 =
  4. 4.5.9 × 0.09 =
  5. 5.0.52 × 2.1 =
  6. 6.0.93 × 1.4 =
  7. 7.5.4 × 0.07 =
  8. 8.2.8 × 0.37 =
  9. 9.0.81 × 3.1 =
  10. 10.0.68 × 1.2 =
  11. 11.0.92 × 3.2 =
  12. 12.1.1 × 0.11 =
  13. 13.3.8 × 1.8 =
  14. 14.8.3 × 2.1 =
  15. 15.7.8 × 0.08 =
  16. 16.6.1 × 0.9 =
  17. 17.0.84 × 2.9 =
  18. 18.0.76 × 2.3 =
  19. 19.4.7 × 0.4 =
  20. 20.2.4 × 2.3 =
  21. 21.1.5 × 3.9 =
  22. 22.5.7 × 3.5 =
  23. 23.2.7 × 3.2 =
  24. 24.6.6 × 0.26 =
  25. 25.8.7 × 0.37 =
  26. 26.1.4 × 0.2 =
  27. 27.2.1 × 1.4 =
  28. 28.0.42 × 0.3 =
  29. 29.5.7 × 0.7 =
  30. 30.0.21 × 0.9 =
  31. 31.0.65 × 0.5 =
  32. 32.1.4 × 3.9 =
  33. 33.3.8 × 0.13 =
  34. 34.0.26 × 3.4 =
  35. 35.0.27 × 2.8 =
  36. 36.7.8 × 1.4 =
  37. 37.0.47 × 3.2 =
  38. 38.0.02 × 3.1 =
  39. 39.7.3 × 0.19 =
  40. 40.4.5 × 0.5 =

Answer key

  1. 5.46
  2. 0.054
  3. 0.432
  4. 0.531
  5. 1.092
  6. 1.302
  7. 0.378
  8. 1.036
  9. 2.511
  10. 0.816
  11. 2.944
  12. 0.121
  13. 6.84
  14. 17.43
  15. 0.624
  16. 5.49
  17. 2.436
  18. 1.748
  19. 1.88
  20. 5.52
  21. 5.85
  22. 19.95
  23. 8.64
  24. 1.716
  25. 3.219
  26. 0.28
  27. 2.94
  28. 0.126
  29. 3.99
  30. 0.189
  31. 0.325
  32. 5.46
  33. 0.494
  34. 0.884
  35. 0.756
  36. 10.92
  37. 1.504
  38. 0.062
  39. 1.387
  40. 2.25

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