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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 784 · 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. 1.0.47 × 2.7 =
  2. 2.0.06 × 0.7 =
  3. 3.3.1 × 2.6 =
  4. 4.0.79 × 2.7 =
  5. 5.3.3 × 0.24 =
  6. 6.0.4 × 1.2 =
  7. 7.9.5 × 3.1 =
  8. 8.0.97 × 0.8 =
  9. 9.0.4 × 3.2 =
  10. 10.5.3 × 3.9 =
  11. 11.2.5 × 3.2 =
  12. 12.0.51 × 0.9 =
  13. 13.0.5 × 0.02 =
  14. 14.0.21 × 2.5 =
  15. 15.0.17 × 0.5 =
  16. 16.0.18 × 1.4 =
  17. 17.0.14 × 2.9 =
  18. 18.0.31 × 1.2 =
  19. 19.9.9 × 1.2 =
  20. 20.0.11 × 2.3 =
  21. 21.7.2 × 0.6 =
  22. 22.2.7 × 0.26 =
  23. 23.3.3 × 0.38 =
  24. 24.9.6 × 0.08 =
  25. 25.8.6 × 1.3 =
  26. 26.4.9 × 0.2 =
  27. 27.3.2 × 0.05 =
  28. 28.5.1 × 0.19 =
  29. 29.7.4 × 0.14 =
  30. 30.0.16 × 1.4 =
  31. 31.0.9 × 1.3 =
  32. 32.5.2 × 3.7 =
  33. 33.3.3 × 0.32 =
  34. 34.1.1 × 2.3 =
  35. 35.0.22 × 3.6 =
  36. 36.6.3 × 0.06 =
  37. 37.0.87 × 0.2 =
  38. 38.1.6 × 0.35 =
  39. 39.0.87 × 2.8 =
  40. 40.0.88 × 2.2 =

Answer key

  1. 1.269
  2. 0.042
  3. 8.06
  4. 2.133
  5. 0.792
  6. 0.48
  7. 29.45
  8. 0.776
  9. 1.28
  10. 20.67
  11. 8
  12. 0.459
  13. 0.01
  14. 0.525
  15. 0.085
  16. 0.252
  17. 0.406
  18. 0.372
  19. 11.88
  20. 0.253
  21. 4.32
  22. 0.702
  23. 1.254
  24. 0.768
  25. 11.18
  26. 0.98
  27. 0.16
  28. 0.969
  29. 1.036
  30. 0.224
  31. 1.17
  32. 19.24
  33. 1.056
  34. 2.53
  35. 0.792
  36. 0.378
  37. 0.174
  38. 0.56
  39. 2.436
  40. 1.936

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