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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 986 · 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. 1.0.07 × 2.6 =
  2. 2.0.25 × 0.3 =
  3. 3.0.93 × 0.8 =
  4. 4.0.37 × 3.5 =
  5. 5.0.14 × 2.7 =
  6. 6.3.2 × 1.7 =
  7. 7.0.89 × 0.4 =
  8. 8.0.8 × 3.3 =
  9. 9.7.2 × 0.29 =
  10. 10.6.5 × 0.26 =
  11. 11.6.4 × 0.7 =
  12. 12.0.49 × 2.8 =
  13. 13.6.1 × 2.1 =
  14. 14.5.2 × 0.17 =
  15. 15.0.27 × 2.1 =
  16. 16.1.5 × 0.37 =
  17. 17.0.59 × 3.1 =
  18. 18.1.6 × 0.9 =
  19. 19.0.75 × 2.2 =
  20. 20.8.6 × 3.1 =
  21. 21.0.24 × 2.2 =
  22. 22.4.1 × 1.1 =
  23. 23.1.1 × 0.11 =
  24. 24.8.6 × 0.28 =
  25. 25.0.83 × 2.2 =
  26. 26.0.21 × 3.2 =
  27. 27.6.6 × 0.7 =
  28. 28.3.5 × 0.31 =
  29. 29.0.05 × 1.1 =
  30. 30.0.15 × 1.6 =
  31. 31.2.2 × 1.5 =
  32. 32.2.5 × 1.1 =
  33. 33.0.23 × 3.4 =
  34. 34.0.36 × 1.5 =
  35. 35.0.65 × 3.4 =
  36. 36.0.73 × 0.3 =
  37. 37.0.66 × 1.8 =
  38. 38.2.8 × 1.1 =
  39. 39.0.29 × 1.1 =
  40. 40.0.34 × 2.1 =

Answer key

  1. 0.182
  2. 0.075
  3. 0.744
  4. 1.295
  5. 0.378
  6. 5.44
  7. 0.356
  8. 2.64
  9. 2.088
  10. 1.69
  11. 4.48
  12. 1.372
  13. 12.81
  14. 0.884
  15. 0.567
  16. 0.555
  17. 1.829
  18. 1.44
  19. 1.65
  20. 26.66
  21. 0.528
  22. 4.51
  23. 0.121
  24. 2.408
  25. 1.826
  26. 0.672
  27. 4.62
  28. 1.085
  29. 0.055
  30. 0.24
  31. 3.3
  32. 2.75
  33. 0.782
  34. 0.54
  35. 2.21
  36. 0.219
  37. 1.188
  38. 3.08
  39. 0.319
  40. 0.714

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