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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 813 · 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. 1.0.5 × 2.4 =
  2. 2.0.82 × 0.7 =
  3. 3.0.98 × 3.7 =
  4. 4.1.7 × 0.31 =
  5. 5.0.29 × 0.3 =
  6. 6.0.51 × 0.5 =
  7. 7.0.59 × 0.2 =
  8. 8.5.8 × 1.1 =
  9. 9.2.6 × 0.17 =
  10. 10.1.6 × 0.35 =
  11. 11.0.82 × 0.6 =
  12. 12.0.83 × 0.4 =
  13. 13.1.5 × 3.2 =
  14. 14.7.1 × 0.06 =
  15. 15.0.14 × 2.1 =
  16. 16.4.2 × 0.28 =
  17. 17.0.4 × 1.7 =
  18. 18.6.7 × 0.34 =
  19. 19.0.36 × 2.7 =
  20. 20.1.3 × 1.6 =
  21. 21.0.64 × 3.5 =
  22. 22.0.91 × 3.4 =
  23. 23.0.38 × 2.5 =
  24. 24.0.79 × 0.4 =
  25. 25.1.2 × 0.6 =
  26. 26.0.69 × 1.9 =
  27. 27.0.24 × 2.9 =
  28. 28.3.1 × 0.14 =
  29. 29.0.11 × 1.1 =
  30. 30.0.39 × 1.4 =
  31. 31.0.61 × 1.2 =
  32. 32.2.6 × 0.29 =
  33. 33.8.6 × 0.28 =
  34. 34.6.1 × 0.21 =
  35. 35.0.99 × 3.5 =
  36. 36.0.51 × 0.8 =
  37. 37.7.8 × 0.2 =
  38. 38.8.1 × 3.3 =
  39. 39.0.58 × 0.3 =
  40. 40.0.46 × 2.1 =

Answer key

  1. 1.2
  2. 0.574
  3. 3.626
  4. 0.527
  5. 0.087
  6. 0.255
  7. 0.118
  8. 6.38
  9. 0.442
  10. 0.56
  11. 0.492
  12. 0.332
  13. 4.8
  14. 0.426
  15. 0.294
  16. 1.176
  17. 0.68
  18. 2.278
  19. 0.972
  20. 2.08
  21. 2.24
  22. 3.094
  23. 0.95
  24. 0.316
  25. 0.72
  26. 1.311
  27. 0.696
  28. 0.434
  29. 0.121
  30. 0.546
  31. 0.732
  32. 0.754
  33. 2.408
  34. 1.281
  35. 3.465
  36. 0.408
  37. 1.56
  38. 26.73
  39. 0.174
  40. 0.966

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