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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 948 · 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. 1.0.72 × 3.5 =
  2. 2.0.19 × 3.7 =
  3. 3.0.6 × 2.4 =
  4. 4.2.5 × 0.04 =
  5. 5.0.35 × 1.6 =
  6. 6.0.03 × 2.7 =
  7. 7.6.5 × 1.8 =
  8. 8.0.53 × 2.7 =
  9. 9.0.52 × 0.4 =
  10. 10.8.5 × 2.2 =
  11. 11.0.25 × 2.6 =
  12. 12.1.1 × 0.13 =
  13. 13.2.8 × 3.3 =
  14. 14.0.79 × 1.1 =
  15. 15.6.3 × 0.7 =
  16. 16.2.4 × 1.3 =
  17. 17.0.15 × 2.7 =
  18. 18.4.1 × 3.1 =
  19. 19.0.94 × 1.2 =
  20. 20.2.3 × 0.5 =
  21. 21.8.4 × 1.7 =
  22. 22.0.26 × 2.6 =
  23. 23.0.66 × 0.9 =
  24. 24.0.75 × 1.2 =
  25. 25.0.15 × 1.3 =
  26. 26.0.83 × 2.1 =
  27. 27.0.43 × 2.1 =
  28. 28.0.89 × 2.9 =
  29. 29.1.7 × 0.37 =
  30. 30.0.09 × 0.7 =
  31. 31.0.16 × 2.5 =
  32. 32.0.53 × 1.9 =
  33. 33.2.1 × 0.11 =
  34. 34.7.4 × 0.22 =
  35. 35.7.6 × 1.4 =
  36. 36.6.4 × 0.04 =
  37. 37.9.4 × 3.4 =
  38. 38.0.42 × 3.2 =
  39. 39.0.68 × 1.1 =
  40. 40.0.63 × 0.7 =

Answer key

  1. 2.52
  2. 0.703
  3. 1.44
  4. 0.1
  5. 0.56
  6. 0.081
  7. 11.7
  8. 1.431
  9. 0.208
  10. 18.7
  11. 0.65
  12. 0.143
  13. 9.24
  14. 0.869
  15. 4.41
  16. 3.12
  17. 0.405
  18. 12.71
  19. 1.128
  20. 1.15
  21. 14.28
  22. 0.676
  23. 0.594
  24. 0.9
  25. 0.195
  26. 1.743
  27. 0.903
  28. 2.581
  29. 0.629
  30. 0.063
  31. 0.4
  32. 1.007
  33. 0.231
  34. 1.628
  35. 10.64
  36. 0.256
  37. 31.96
  38. 1.344
  39. 0.748
  40. 0.441

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