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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 563 · 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. 1.0.4 × 0.02 =
  2. 2.4.1 × 0.27 =
  3. 3.0.8 × 0.13 =
  4. 4.7.6 × 0.16 =
  5. 5.2.9 × 0.11 =
  6. 6.4.3 × 1.6 =
  7. 7.4.6 × 0.11 =
  8. 8.0.13 × 3.4 =
  9. 9.3.8 × 0.11 =
  10. 10.1.2 × 2.6 =
  11. 11.0.31 × 0.3 =
  12. 12.0.81 × 1.1 =
  13. 13.0.73 × 2.8 =
  14. 14.0.85 × 1.6 =
  15. 15.0.91 × 1.9 =
  16. 16.0.5 × 0.13 =
  17. 17.0.75 × 1.1 =
  18. 18.0.31 × 3.4 =
  19. 19.0.84 × 1.7 =
  20. 20.0.41 × 1.4 =
  21. 21.9.6 × 0.15 =
  22. 22.0.11 × 0.8 =
  23. 23.0.61 × 2.8 =
  24. 24.4.2 × 0.25 =
  25. 25.9.8 × 0.21 =
  26. 26.3.1 × 1.6 =
  27. 27.0.02 × 2.7 =
  28. 28.4.8 × 0.33 =
  29. 29.0.06 × 3.5 =
  30. 30.1.6 × 3.6 =
  31. 31.7.7 × 0.04 =
  32. 32.0.72 × 0.5 =
  33. 33.0.05 × 1.5 =
  34. 34.4.8 × 0.31 =
  35. 35.0.55 × 0.2 =
  36. 36.8.5 × 2.7 =
  37. 37.0.46 × 1.7 =
  38. 38.0.55 × 3.6 =
  39. 39.0.42 × 3.7 =
  40. 40.0.51 × 0.6 =

Answer key

  1. 0.008
  2. 1.107
  3. 0.104
  4. 1.216
  5. 0.319
  6. 6.88
  7. 0.506
  8. 0.442
  9. 0.418
  10. 3.12
  11. 0.093
  12. 0.891
  13. 2.044
  14. 1.36
  15. 1.729
  16. 0.065
  17. 0.825
  18. 1.054
  19. 1.428
  20. 0.574
  21. 1.44
  22. 0.088
  23. 1.708
  24. 1.05
  25. 2.058
  26. 4.96
  27. 0.054
  28. 1.584
  29. 0.21
  30. 5.76
  31. 0.308
  32. 0.36
  33. 0.075
  34. 1.488
  35. 0.11
  36. 22.95
  37. 0.782
  38. 1.98
  39. 1.554
  40. 0.306

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