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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 821 · 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. 1.2.7 × 0.36 =
  2. 2.0.75 × 2.7 =
  3. 3.1.3 × 0.17 =
  4. 4.0.98 × 0.8 =
  5. 5.1.2 × 0.38 =
  6. 6.7.6 × 0.7 =
  7. 7.6.2 × 2.7 =
  8. 8.7.9 × 0.05 =
  9. 9.0.28 × 3.1 =
  10. 10.0.43 × 1.1 =
  11. 11.3.3 × 3.7 =
  12. 12.0.18 × 3.7 =
  13. 13.8.9 × 0.05 =
  14. 14.0.31 × 2.9 =
  15. 15.1.3 × 0.5 =
  16. 16.8.3 × 0.31 =
  17. 17.0.02 × 0.4 =
  18. 18.0.09 × 1.5 =
  19. 19.0.19 × 1.9 =
  20. 20.8.4 × 1.4 =
  21. 21.0.08 × 0.4 =
  22. 22.0.71 × 3.9 =
  23. 23.1.2 × 3.5 =
  24. 24.0.29 × 1.3 =
  25. 25.9.8 × 0.26 =
  26. 26.0.6 × 1.4 =
  27. 27.5.6 × 0.35 =
  28. 28.2.2 × 1.2 =
  29. 29.2.1 × 0.4 =
  30. 30.0.19 × 1.8 =
  31. 31.7.2 × 1.2 =
  32. 32.9.1 × 0.39 =
  33. 33.0.92 × 3.9 =
  34. 34.0.15 × 2.9 =
  35. 35.1.4 × 0.02 =
  36. 36.1.2 × 1.6 =
  37. 37.0.83 × 2.1 =
  38. 38.0.39 × 1.3 =
  39. 39.0.26 × 0.5 =
  40. 40.7.1 × 1.3 =

Answer key

  1. 0.972
  2. 2.025
  3. 0.221
  4. 0.784
  5. 0.456
  6. 5.32
  7. 16.74
  8. 0.395
  9. 0.868
  10. 0.473
  11. 12.21
  12. 0.666
  13. 0.445
  14. 0.899
  15. 0.65
  16. 2.573
  17. 0.008
  18. 0.135
  19. 0.361
  20. 11.76
  21. 0.032
  22. 2.769
  23. 4.2
  24. 0.377
  25. 2.548
  26. 0.84
  27. 1.96
  28. 2.64
  29. 0.84
  30. 0.342
  31. 8.64
  32. 3.549
  33. 3.588
  34. 0.435
  35. 0.028
  36. 1.92
  37. 1.743
  38. 0.507
  39. 0.13
  40. 9.23

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