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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 787 · 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. 1.7.5 × 2.7 =
  2. 2.6.9 × 2.9 =
  3. 3.1.8 × 2.5 =
  4. 4.0.73 × 1.1 =
  5. 5.4.1 × 0.35 =
  6. 6.8.7 × 0.12 =
  7. 7.0.96 × 1.9 =
  8. 8.7.5 × 0.7 =
  9. 9.0.35 × 0.9 =
  10. 10.0.98 × 3.8 =
  11. 11.0.44 × 2.2 =
  12. 12.6.2 × 3.2 =
  13. 13.0.87 × 1.1 =
  14. 14.0.81 × 0.8 =
  15. 15.8.1 × 3.7 =
  16. 16.0.9 × 0.27 =
  17. 17.5.9 × 0.26 =
  18. 18.3.7 × 1.1 =
  19. 19.0.31 × 0.9 =
  20. 20.0.9 × 3.1 =
  21. 21.7.8 × 2.9 =
  22. 22.6.2 × 0.4 =
  23. 23.0.43 × 3.1 =
  24. 24.0.98 × 1.4 =
  25. 25.6.3 × 0.4 =
  26. 26.2.2 × 0.16 =
  27. 27.0.16 × 0.8 =
  28. 28.2.9 × 0.18 =
  29. 29.0.59 × 0.4 =
  30. 30.0.95 × 1.5 =
  31. 31.9.4 × 2.9 =
  32. 32.3.4 × 0.06 =
  33. 33.9.7 × 0.15 =
  34. 34.5.4 × 0.07 =
  35. 35.6.1 × 0.03 =
  36. 36.1.6 × 0.14 =
  37. 37.9.1 × 3.3 =
  38. 38.3.2 × 3.3 =
  39. 39.0.61 × 0.7 =
  40. 40.3.2 × 0.9 =

Answer key

  1. 20.25
  2. 20.01
  3. 4.5
  4. 0.803
  5. 1.435
  6. 1.044
  7. 1.824
  8. 5.25
  9. 0.315
  10. 3.724
  11. 0.968
  12. 19.84
  13. 0.957
  14. 0.648
  15. 29.97
  16. 0.243
  17. 1.534
  18. 4.07
  19. 0.279
  20. 2.79
  21. 22.62
  22. 2.48
  23. 1.333
  24. 1.372
  25. 2.52
  26. 0.352
  27. 0.128
  28. 0.522
  29. 0.236
  30. 1.425
  31. 27.26
  32. 0.204
  33. 1.455
  34. 0.378
  35. 0.183
  36. 0.224
  37. 30.03
  38. 10.56
  39. 0.427
  40. 2.88

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