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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 945 · 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. 1.0.42 × 0.4 =
  2. 2.9.1 × 2.4 =
  3. 3.1.7 × 3.7 =
  4. 4.0.97 × 0.4 =
  5. 5.0.22 × 3.7 =
  6. 6.9.9 × 0.34 =
  7. 7.0.61 × 0.5 =
  8. 8.0.82 × 0.4 =
  9. 9.9.7 × 0.6 =
  10. 10.0.19 × 2.2 =
  11. 11.0.26 × 1.7 =
  12. 12.5.8 × 0.06 =
  13. 13.9.8 × 0.2 =
  14. 14.0.76 × 3.1 =
  15. 15.0.64 × 3.1 =
  16. 16.0.28 × 2.6 =
  17. 17.7.4 × 2.2 =
  18. 18.0.63 × 3.7 =
  19. 19.4.4 × 1.9 =
  20. 20.2.8 × 0.16 =
  21. 21.2.9 × 0.05 =
  22. 22.0.81 × 3.4 =
  23. 23.0.51 × 0.9 =
  24. 24.0.76 × 1.2 =
  25. 25.8.4 × 0.11 =
  26. 26.0.11 × 0.7 =
  27. 27.0.87 × 0.7 =
  28. 28.9.4 × 0.35 =
  29. 29.0.44 × 3.3 =
  30. 30.0.54 × 1.1 =
  31. 31.1.3 × 3.2 =
  32. 32.0.19 × 1.9 =
  33. 33.0.4 × 0.34 =
  34. 34.4.9 × 0.9 =
  35. 35.1.2 × 0.35 =
  36. 36.0.13 × 1.6 =
  37. 37.0.18 × 1.5 =
  38. 38.0.6 × 1.6 =
  39. 39.6.1 × 0.16 =
  40. 40.0.4 × 0.33 =

Answer key

  1. 0.168
  2. 21.84
  3. 6.29
  4. 0.388
  5. 0.814
  6. 3.366
  7. 0.305
  8. 0.328
  9. 5.82
  10. 0.418
  11. 0.442
  12. 0.348
  13. 1.96
  14. 2.356
  15. 1.984
  16. 0.728
  17. 16.28
  18. 2.331
  19. 8.36
  20. 0.448
  21. 0.145
  22. 2.754
  23. 0.459
  24. 0.912
  25. 0.924
  26. 0.077
  27. 0.609
  28. 3.29
  29. 1.452
  30. 0.594
  31. 4.16
  32. 0.361
  33. 0.136
  34. 4.41
  35. 0.42
  36. 0.208
  37. 0.27
  38. 0.96
  39. 0.976
  40. 0.132

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