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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 60 · 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. 1.0.03 × 1.1 =
  2. 2.0.61 × 1.1 =
  3. 3.4.4 × 0.31 =
  4. 4.7.9 × 0.21 =
  5. 5.8.6 × 1.3 =
  6. 6.0.17 × 1.5 =
  7. 7.1.4 × 1.1 =
  8. 8.0.11 × 0.7 =
  9. 9.7.2 × 2.2 =
  10. 10.5.4 × 1.6 =
  11. 11.0.63 × 2.7 =
  12. 12.9.1 × 0.26 =
  13. 13.3.5 × 2.8 =
  14. 14.0.96 × 1.8 =
  15. 15.0.25 × 0.3 =
  16. 16.2.2 × 3.2 =
  17. 17.0.95 × 3.2 =
  18. 18.9.2 × 0.04 =
  19. 19.6.1 × 0.5 =
  20. 20.0.77 × 0.7 =
  21. 21.4.1 × 0.32 =
  22. 22.5.6 × 0.21 =
  23. 23.0.25 × 0.8 =
  24. 24.0.84 × 0.5 =
  25. 25.4.3 × 0.31 =
  26. 26.5.7 × 0.11 =
  27. 27.4.7 × 0.4 =
  28. 28.9.8 × 0.08 =
  29. 29.7.1 × 0.21 =
  30. 30.4.2 × 2.8 =
  31. 31.0.32 × 1.1 =
  32. 32.0.12 × 1.8 =
  33. 33.0.61 × 2.7 =
  34. 34.0.48 × 2.6 =
  35. 35.8.4 × 0.28 =
  36. 36.8.2 × 0.26 =
  37. 37.0.33 × 1.6 =
  38. 38.4.2 × 0.27 =
  39. 39.0.87 × 1.8 =
  40. 40.0.95 × 1.1 =

Answer key

  1. 0.033
  2. 0.671
  3. 1.364
  4. 1.659
  5. 11.18
  6. 0.255
  7. 1.54
  8. 0.077
  9. 15.84
  10. 8.64
  11. 1.701
  12. 2.366
  13. 9.8
  14. 1.728
  15. 0.075
  16. 7.04
  17. 3.04
  18. 0.368
  19. 3.05
  20. 0.539
  21. 1.312
  22. 1.176
  23. 0.2
  24. 0.42
  25. 1.333
  26. 0.627
  27. 1.88
  28. 0.784
  29. 1.491
  30. 11.76
  31. 0.352
  32. 0.216
  33. 1.647
  34. 1.248
  35. 2.352
  36. 2.132
  37. 0.528
  38. 1.134
  39. 1.566
  40. 1.045

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