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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 777 · 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. 1.0.95 × 3.2 =
  2. 2.8.5 × 0.34 =
  3. 3.0.2 × 2.1 =
  4. 4.0.78 × 3.5 =
  5. 5.0.14 × 0.3 =
  6. 6.8.3 × 0.05 =
  7. 7.0.99 × 3.1 =
  8. 8.0.16 × 3.4 =
  9. 9.7.6 × 1.2 =
  10. 10.0.45 × 2.6 =
  11. 11.0.26 × 1.3 =
  12. 12.0.5 × 0.23 =
  13. 13.7.6 × 0.04 =
  14. 14.1.1 × 0.9 =
  15. 15.0.24 × 1.1 =
  16. 16.3.1 × 1.3 =
  17. 17.0.61 × 3.1 =
  18. 18.0.9 × 0.08 =
  19. 19.2.7 × 0.33 =
  20. 20.4.6 × 3.3 =
  21. 21.0.05 × 2.9 =
  22. 22.8.5 × 0.12 =
  23. 23.8.4 × 0.03 =
  24. 24.3.7 × 0.11 =
  25. 25.0.89 × 3.1 =
  26. 26.2.5 × 0.11 =
  27. 27.1.5 × 1.3 =
  28. 28.7.5 × 3.2 =
  29. 29.4.7 × 2.2 =
  30. 30.5.8 × 0.6 =
  31. 31.0.69 × 2.6 =
  32. 32.1.7 × 2.6 =
  33. 33.0.58 × 2.7 =
  34. 34.4.1 × 0.34 =
  35. 35.0.11 × 1.6 =
  36. 36.0.74 × 3.6 =
  37. 37.0.55 × 0.4 =
  38. 38.0.03 × 1.2 =
  39. 39.0.04 × 1.3 =
  40. 40.9.1 × 0.02 =

Answer key

  1. 3.04
  2. 2.89
  3. 0.42
  4. 2.73
  5. 0.042
  6. 0.415
  7. 3.069
  8. 0.544
  9. 9.12
  10. 1.17
  11. 0.338
  12. 0.115
  13. 0.304
  14. 0.99
  15. 0.264
  16. 4.03
  17. 1.891
  18. 0.072
  19. 0.891
  20. 15.18
  21. 0.145
  22. 1.02
  23. 0.252
  24. 0.407
  25. 2.759
  26. 0.275
  27. 1.95
  28. 24
  29. 10.34
  30. 3.48
  31. 1.794
  32. 4.42
  33. 1.566
  34. 1.394
  35. 0.176
  36. 2.664
  37. 0.22
  38. 0.036
  39. 0.052
  40. 0.182

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