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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 938 · 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. 1.0.44 × 3.2 =
  2. 2.1.3 × 2.7 =
  3. 3.4.6 × 3.7 =
  4. 4.0.56 × 3.1 =
  5. 5.0.66 × 2.7 =
  6. 6.0.37 × 1.6 =
  7. 7.7.9 × 1.6 =
  8. 8.0.16 × 3.5 =
  9. 9.0.85 × 1.7 =
  10. 10.0.82 × 0.6 =
  11. 11.0.79 × 2.2 =
  12. 12.1.3 × 1.5 =
  13. 13.1.2 × 0.8 =
  14. 14.0.08 × 0.7 =
  15. 15.0.87 × 1.1 =
  16. 16.0.79 × 2.3 =
  17. 17.2.1 × 1.1 =
  18. 18.0.8 × 3.9 =
  19. 19.9.1 × 0.7 =
  20. 20.1.4 × 3.7 =
  21. 21.8.4 × 3.3 =
  22. 22.0.11 × 2.6 =
  23. 23.6.1 × 1.3 =
  24. 24.8.7 × 0.23 =
  25. 25.0.4 × 1.6 =
  26. 26.1.5 × 0.27 =
  27. 27.0.31 × 1.6 =
  28. 28.3.3 × 0.21 =
  29. 29.4.9 × 0.35 =
  30. 30.0.63 × 1.1 =
  31. 31.3.3 × 2.1 =
  32. 32.0.07 × 3.1 =
  33. 33.0.47 × 3.8 =
  34. 34.0.74 × 0.9 =
  35. 35.0.21 × 0.5 =
  36. 36.5.2 × 0.31 =
  37. 37.0.22 × 2.3 =
  38. 38.9.8 × 0.09 =
  39. 39.8.8 × 1.3 =
  40. 40.0.22 × 1.7 =

Answer key

  1. 1.408
  2. 3.51
  3. 17.02
  4. 1.736
  5. 1.782
  6. 0.592
  7. 12.64
  8. 0.56
  9. 1.445
  10. 0.492
  11. 1.738
  12. 1.95
  13. 0.96
  14. 0.056
  15. 0.957
  16. 1.817
  17. 2.31
  18. 3.12
  19. 6.37
  20. 5.18
  21. 27.72
  22. 0.286
  23. 7.93
  24. 2.001
  25. 0.64
  26. 0.405
  27. 0.496
  28. 0.693
  29. 1.715
  30. 0.693
  31. 6.93
  32. 0.217
  33. 1.786
  34. 0.666
  35. 0.105
  36. 1.612
  37. 0.506
  38. 0.882
  39. 11.44
  40. 0.374

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