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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 970 · 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. 1.3.9 × 0.12 =
  2. 2.0.13 × 1.2 =
  3. 3.0.73 × 1.6 =
  4. 4.6.9 × 3.5 =
  5. 5.2.1 × 0.2 =
  6. 6.0.79 × 2.1 =
  7. 7.3.1 × 0.06 =
  8. 8.0.88 × 2.6 =
  9. 9.7.3 × 0.18 =
  10. 10.0.84 × 3.4 =
  11. 11.0.99 × 1.2 =
  12. 12.3.6 × 0.4 =
  13. 13.0.95 × 0.7 =
  14. 14.0.47 × 2.2 =
  15. 15.0.98 × 3.1 =
  16. 16.0.28 × 3.5 =
  17. 17.0.15 × 2.3 =
  18. 18.1.9 × 1.4 =
  19. 19.9.1 × 3.6 =
  20. 20.0.69 × 2.8 =
  21. 21.0.47 × 3.9 =
  22. 22.0.02 × 1.9 =
  23. 23.0.88 × 3.3 =
  24. 24.5.6 × 3.4 =
  25. 25.3.8 × 0.14 =
  26. 26.0.68 × 2.1 =
  27. 27.1.3 × 2.3 =
  28. 28.7.4 × 3.8 =
  29. 29.0.51 × 1.2 =
  30. 30.0.6 × 0.11 =
  31. 31.3.1 × 0.22 =
  32. 32.0.4 × 0.16 =
  33. 33.0.54 × 3.5 =
  34. 34.0.62 × 3.5 =
  35. 35.9.6 × 2.2 =
  36. 36.7.6 × 0.08 =
  37. 37.0.84 × 1.3 =
  38. 38.5.7 × 1.8 =
  39. 39.1.4 × 0.7 =
  40. 40.0.72 × 3.7 =

Answer key

  1. 0.468
  2. 0.156
  3. 1.168
  4. 24.15
  5. 0.42
  6. 1.659
  7. 0.186
  8. 2.288
  9. 1.314
  10. 2.856
  11. 1.188
  12. 1.44
  13. 0.665
  14. 1.034
  15. 3.038
  16. 0.98
  17. 0.345
  18. 2.66
  19. 32.76
  20. 1.932
  21. 1.833
  22. 0.038
  23. 2.904
  24. 19.04
  25. 0.532
  26. 1.428
  27. 2.99
  28. 28.12
  29. 0.612
  30. 0.066
  31. 0.682
  32. 0.064
  33. 1.89
  34. 2.17
  35. 21.12
  36. 0.608
  37. 1.092
  38. 10.26
  39. 0.98
  40. 2.664

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