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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 303 · 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. 1.0.44 × 2.8 =
  2. 2.0.79 × 3.1 =
  3. 3.0.04 × 2.6 =
  4. 4.7.9 × 1.9 =
  5. 5.0.13 × 1.1 =
  6. 6.0.32 × 2.3 =
  7. 7.0.65 × 1.1 =
  8. 8.3.9 × 2.5 =
  9. 9.0.05 × 2.6 =
  10. 10.1.8 × 1.9 =
  11. 11.3.5 × 0.38 =
  12. 12.4.7 × 0.4 =
  13. 13.0.52 × 3.3 =
  14. 14.0.51 × 3.1 =
  15. 15.0.74 × 3.6 =
  16. 16.2.1 × 2.4 =
  17. 17.0.77 × 0.6 =
  18. 18.3.6 × 3.4 =
  19. 19.0.29 × 3.7 =
  20. 20.3.3 × 1.8 =
  21. 21.6.2 × 0.11 =
  22. 22.7.1 × 2.6 =
  23. 23.0.18 × 1.1 =
  24. 24.0.68 × 1.6 =
  25. 25.9.6 × 0.05 =
  26. 26.2.8 × 1.8 =
  27. 27.3.1 × 0.07 =
  28. 28.9.6 × 0.12 =
  29. 29.0.64 × 0.4 =
  30. 30.0.07 × 0.5 =
  31. 31.5.8 × 0.32 =
  32. 32.0.72 × 0.9 =
  33. 33.0.81 × 0.6 =
  34. 34.5.6 × 2.1 =
  35. 35.4.5 × 0.24 =
  36. 36.0.4 × 0.5 =
  37. 37.0.26 × 2.5 =
  38. 38.0.61 × 3.8 =
  39. 39.0.25 × 2.6 =
  40. 40.9.8 × 0.4 =

Answer key

  1. 1.232
  2. 2.449
  3. 0.104
  4. 15.01
  5. 0.143
  6. 0.736
  7. 0.715
  8. 9.75
  9. 0.13
  10. 3.42
  11. 1.33
  12. 1.88
  13. 1.716
  14. 1.581
  15. 2.664
  16. 5.04
  17. 0.462
  18. 12.24
  19. 1.073
  20. 5.94
  21. 0.682
  22. 18.46
  23. 0.198
  24. 1.088
  25. 0.48
  26. 5.04
  27. 0.217
  28. 1.152
  29. 0.256
  30. 0.035
  31. 1.856
  32. 0.648
  33. 0.486
  34. 11.76
  35. 1.08
  36. 0.2
  37. 0.65
  38. 2.318
  39. 0.65
  40. 3.92

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