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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 803 · 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. 1.0.66 × 2.7 =
  2. 2.0.91 × 0.3 =
  3. 3.3.6 × 0.9 =
  4. 4.2.4 × 0.8 =
  5. 5.8.3 × 2.1 =
  6. 6.2.8 × 2.4 =
  7. 7.0.45 × 2.1 =
  8. 8.6.4 × 0.31 =
  9. 9.2.8 × 0.06 =
  10. 10.1.3 × 0.21 =
  11. 11.5.4 × 0.25 =
  12. 12.2.3 × 3.5 =
  13. 13.2.2 × 3.1 =
  14. 14.7.1 × 0.8 =
  15. 15.2.7 × 3.9 =
  16. 16.2.2 × 0.26 =
  17. 17.4.9 × 3.8 =
  18. 18.0.72 × 0.4 =
  19. 19.0.9 × 2.1 =
  20. 20.0.27 × 1.6 =
  21. 21.0.71 × 3.8 =
  22. 22.1.6 × 0.33 =
  23. 23.0.61 × 2.1 =
  24. 24.0.55 × 1.7 =
  25. 25.3.7 × 3.6 =
  26. 26.8.8 × 3.2 =
  27. 27.6.9 × 0.31 =
  28. 28.9.2 × 2.8 =
  29. 29.0.83 × 2.7 =
  30. 30.5.3 × 3.1 =
  31. 31.0.28 × 3.6 =
  32. 32.0.41 × 2.7 =
  33. 33.0.43 × 1.3 =
  34. 34.8.1 × 3.9 =
  35. 35.0.7 × 0.26 =
  36. 36.0.04 × 1.2 =
  37. 37.1.6 × 0.7 =
  38. 38.0.75 × 0.9 =
  39. 39.0.21 × 1.2 =
  40. 40.0.02 × 0.7 =

Answer key

  1. 1.782
  2. 0.273
  3. 3.24
  4. 1.92
  5. 17.43
  6. 6.72
  7. 0.945
  8. 1.984
  9. 0.168
  10. 0.273
  11. 1.35
  12. 8.05
  13. 6.82
  14. 5.68
  15. 10.53
  16. 0.572
  17. 18.62
  18. 0.288
  19. 1.89
  20. 0.432
  21. 2.698
  22. 0.528
  23. 1.281
  24. 0.935
  25. 13.32
  26. 28.16
  27. 2.139
  28. 25.76
  29. 2.241
  30. 16.43
  31. 1.008
  32. 1.107
  33. 0.559
  34. 31.59
  35. 0.182
  36. 0.048
  37. 1.12
  38. 0.675
  39. 0.252
  40. 0.014

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