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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 954 · 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 × 1.7 =
  2. 2.5.1 × 3.8 =
  3. 3.5.3 × 0.3 =
  4. 4.8.4 × 0.39 =
  5. 5.0.39 × 2.7 =
  6. 6.1.5 × 3.7 =
  7. 7.0.92 × 2.1 =
  8. 8.0.95 × 2.1 =
  9. 9.3.5 × 0.02 =
  10. 10.4.2 × 3.8 =
  11. 11.0.13 × 1.1 =
  12. 12.0.86 × 3.1 =
  13. 13.0.11 × 3.3 =
  14. 14.0.12 × 3.8 =
  15. 15.0.91 × 3.3 =
  16. 16.4.6 × 0.08 =
  17. 17.0.26 × 3.1 =
  18. 18.0.64 × 1.1 =
  19. 19.8.6 × 0.5 =
  20. 20.5.4 × 0.29 =
  21. 21.2.2 × 2.5 =
  22. 22.0.99 × 2.1 =
  23. 23.0.18 × 1.8 =
  24. 24.0.41 × 0.6 =
  25. 25.0.31 × 2.4 =
  26. 26.3.6 × 1.2 =
  27. 27.0.71 × 1.5 =
  28. 28.0.3 × 3.9 =
  29. 29.0.85 × 3.1 =
  30. 30.5.7 × 0.09 =
  31. 31.0.05 × 3.7 =
  32. 32.0.85 × 2.4 =
  33. 33.9.1 × 0.02 =
  34. 34.0.14 × 0.4 =
  35. 35.4.5 × 0.12 =
  36. 36.7.5 × 0.7 =
  37. 37.2.4 × 0.38 =
  38. 38.3.5 × 3.7 =
  39. 39.0.3 × 2.4 =
  40. 40.6.1 × 0.23 =

Answer key

  1. 4.59
  2. 19.38
  3. 1.59
  4. 3.276
  5. 1.053
  6. 5.55
  7. 1.932
  8. 1.995
  9. 0.07
  10. 15.96
  11. 0.143
  12. 2.666
  13. 0.363
  14. 0.456
  15. 3.003
  16. 0.368
  17. 0.806
  18. 0.704
  19. 4.3
  20. 1.566
  21. 5.5
  22. 2.079
  23. 0.324
  24. 0.246
  25. 0.744
  26. 4.32
  27. 1.065
  28. 1.17
  29. 2.635
  30. 0.513
  31. 0.185
  32. 2.04
  33. 0.182
  34. 0.056
  35. 0.54
  36. 5.25
  37. 0.912
  38. 12.95
  39. 0.72
  40. 1.403

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