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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 932 · 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. 1.0.53 × 2.7 =
  2. 2.8.7 × 0.9 =
  3. 3.7.1 × 0.4 =
  4. 4.0.49 × 2.1 =
  5. 5.5.4 × 2.1 =
  6. 6.0.33 × 2.7 =
  7. 7.2.2 × 3.7 =
  8. 8.0.18 × 0.2 =
  9. 9.0.46 × 1.5 =
  10. 10.0.88 × 1.2 =
  11. 11.0.9 × 0.9 =
  12. 12.1.9 × 0.11 =
  13. 13.3.1 × 0.22 =
  14. 14.6.6 × 0.8 =
  15. 15.0.64 × 2.9 =
  16. 16.2.9 × 0.29 =
  17. 17.0.25 × 0.5 =
  18. 18.0.38 × 0.3 =
  19. 19.0.03 × 2.1 =
  20. 20.0.18 × 0.5 =
  21. 21.0.86 × 0.7 =
  22. 22.3.1 × 0.5 =
  23. 23.0.94 × 3.8 =
  24. 24.8.3 × 0.09 =
  25. 25.4.9 × 3.9 =
  26. 26.0.95 × 0.9 =
  27. 27.0.39 × 2.6 =
  28. 28.0.54 × 2.6 =
  29. 29.0.45 × 2.3 =
  30. 30.2.2 × 0.27 =
  31. 31.0.29 × 3.9 =
  32. 32.5.9 × 0.14 =
  33. 33.0.13 × 1.3 =
  34. 34.3.2 × 0.11 =
  35. 35.0.4 × 3.3 =
  36. 36.0.64 × 1.1 =
  37. 37.0.04 × 3.6 =
  38. 38.0.74 × 1.8 =
  39. 39.8.1 × 0.4 =
  40. 40.0.76 × 3.5 =

Answer key

  1. 1.431
  2. 7.83
  3. 2.84
  4. 1.029
  5. 11.34
  6. 0.891
  7. 8.14
  8. 0.036
  9. 0.69
  10. 1.056
  11. 0.81
  12. 0.209
  13. 0.682
  14. 5.28
  15. 1.856
  16. 0.841
  17. 0.125
  18. 0.114
  19. 0.063
  20. 0.09
  21. 0.602
  22. 1.55
  23. 3.572
  24. 0.747
  25. 19.11
  26. 0.855
  27. 1.014
  28. 1.404
  29. 1.035
  30. 0.594
  31. 1.131
  32. 0.826
  33. 0.169
  34. 0.352
  35. 1.32
  36. 0.704
  37. 0.144
  38. 1.332
  39. 3.24
  40. 2.66

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