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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 848 · 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. 1.0.94 × 1.7 =
  2. 2.7.4 × 2.8 =
  3. 3.9.2 × 0.02 =
  4. 4.0.5 × 1.7 =
  5. 5.2.2 × 1.1 =
  6. 6.4.5 × 1.2 =
  7. 7.0.16 × 0.2 =
  8. 8.0.04 × 3.8 =
  9. 9.0.98 × 1.6 =
  10. 10.2.1 × 0.37 =
  11. 11.5.3 × 0.8 =
  12. 12.0.29 × 1.1 =
  13. 13.0.77 × 2.3 =
  14. 14.5.5 × 0.2 =
  15. 15.0.62 × 1.3 =
  16. 16.5.1 × 3.8 =
  17. 17.3.4 × 0.24 =
  18. 18.5.2 × 0.02 =
  19. 19.0.84 × 2.1 =
  20. 20.0.09 × 1.3 =
  21. 21.1.3 × 1.3 =
  22. 22.0.28 × 0.9 =
  23. 23.0.61 × 0.8 =
  24. 24.0.5 × 0.36 =
  25. 25.8.7 × 0.35 =
  26. 26.0.83 × 3.1 =
  27. 27.4.9 × 0.22 =
  28. 28.9.4 × 0.19 =
  29. 29.2.1 × 0.08 =
  30. 30.0.64 × 0.4 =
  31. 31.4.9 × 0.06 =
  32. 32.0.99 × 3.8 =
  33. 33.0.63 × 3.9 =
  34. 34.0.13 × 0.7 =
  35. 35.0.93 × 0.8 =
  36. 36.0.28 × 2.6 =
  37. 37.0.28 × 0.4 =
  38. 38.2.1 × 1.4 =
  39. 39.0.11 × 3.6 =
  40. 40.0.19 × 1.6 =

Answer key

  1. 1.598
  2. 20.72
  3. 0.184
  4. 0.85
  5. 2.42
  6. 5.4
  7. 0.032
  8. 0.152
  9. 1.568
  10. 0.777
  11. 4.24
  12. 0.319
  13. 1.771
  14. 1.1
  15. 0.806
  16. 19.38
  17. 0.816
  18. 0.104
  19. 1.764
  20. 0.117
  21. 1.69
  22. 0.252
  23. 0.488
  24. 0.18
  25. 3.045
  26. 2.573
  27. 1.078
  28. 1.786
  29. 0.168
  30. 0.256
  31. 0.294
  32. 3.762
  33. 2.457
  34. 0.091
  35. 0.744
  36. 0.728
  37. 0.112
  38. 2.94
  39. 0.396
  40. 0.304

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