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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 856 · 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. 1.0.86 × 1.1 =
  2. 2.0.64 × 1.7 =
  3. 3.4.3 × 0.11 =
  4. 4.0.28 × 2.2 =
  5. 5.7.4 × 0.16 =
  6. 6.0.47 × 3.7 =
  7. 7.4.1 × 1.6 =
  8. 8.0.8 × 1.1 =
  9. 9.1.2 × 2.9 =
  10. 10.0.34 × 1.6 =
  11. 11.0.61 × 0.5 =
  12. 12.6.5 × 0.9 =
  13. 13.2.2 × 3.8 =
  14. 14.0.71 × 0.3 =
  15. 15.9.9 × 1.7 =
  16. 16.3.9 × 2.1 =
  17. 17.7.2 × 0.09 =
  18. 18.0.63 × 1.1 =
  19. 19.7.9 × 0.8 =
  20. 20.0.65 × 2.4 =
  21. 21.0.86 × 2.6 =
  22. 22.0.2 × 0.32 =
  23. 23.0.48 × 3.3 =
  24. 24.0.02 × 1.2 =
  25. 25.5.7 × 0.9 =
  26. 26.8.5 × 1.6 =
  27. 27.6.3 × 0.11 =
  28. 28.4.3 × 0.05 =
  29. 29.0.77 × 0.5 =
  30. 30.2.9 × 3.7 =
  31. 31.0.29 × 3.1 =
  32. 32.0.99 × 3.1 =
  33. 33.0.2 × 0.04 =
  34. 34.7.7 × 1.8 =
  35. 35.0.59 × 1.2 =
  36. 36.0.31 × 1.9 =
  37. 37.2.4 × 0.7 =
  38. 38.0.25 × 2.5 =
  39. 39.0.83 × 2.8 =
  40. 40.0.15 × 2.1 =

Answer key

  1. 0.946
  2. 1.088
  3. 0.473
  4. 0.616
  5. 1.184
  6. 1.739
  7. 6.56
  8. 0.88
  9. 3.48
  10. 0.544
  11. 0.305
  12. 5.85
  13. 8.36
  14. 0.213
  15. 16.83
  16. 8.19
  17. 0.648
  18. 0.693
  19. 6.32
  20. 1.56
  21. 2.236
  22. 0.064
  23. 1.584
  24. 0.024
  25. 5.13
  26. 13.6
  27. 0.693
  28. 0.215
  29. 0.385
  30. 10.73
  31. 0.899
  32. 3.069
  33. 0.008
  34. 13.86
  35. 0.708
  36. 0.589
  37. 1.68
  38. 0.625
  39. 2.324
  40. 0.315

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