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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 643 · 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. 1.9.5 × 0.09 =
  2. 2.0.52 × 1.6 =
  3. 3.0.54 × 3.3 =
  4. 4.6.8 × 0.37 =
  5. 5.0.41 × 1.1 =
  6. 6.0.2 × 0.08 =
  7. 7.1.5 × 0.16 =
  8. 8.2.3 × 0.18 =
  9. 9.4.8 × 0.39 =
  10. 10.0.17 × 2.7 =
  11. 11.6.2 × 0.2 =
  12. 12.0.53 × 0.2 =
  13. 13.0.63 × 2.2 =
  14. 14.0.02 × 3.4 =
  15. 15.1.3 × 0.37 =
  16. 16.1.3 × 0.31 =
  17. 17.0.15 × 3.6 =
  18. 18.0.36 × 2.2 =
  19. 19.8.9 × 2.4 =
  20. 20.9.5 × 0.5 =
  21. 21.0.09 × 0.9 =
  22. 22.9.4 × 0.06 =
  23. 23.0.77 × 2.7 =
  24. 24.4.8 × 1.1 =
  25. 25.0.67 × 2.7 =
  26. 26.5.1 × 3.2 =
  27. 27.9.7 × 1.9 =
  28. 28.0.76 × 3.7 =
  29. 29.0.45 × 3.9 =
  30. 30.6.5 × 0.3 =
  31. 31.4.9 × 3.7 =
  32. 32.1.6 × 0.07 =
  33. 33.0.24 × 3.8 =
  34. 34.3.8 × 1.9 =
  35. 35.0.27 × 0.8 =
  36. 36.2.7 × 0.33 =
  37. 37.0.36 × 2.9 =
  38. 38.0.22 × 2.7 =
  39. 39.3.4 × 1.9 =
  40. 40.0.22 × 3.2 =

Answer key

  1. 0.855
  2. 0.832
  3. 1.782
  4. 2.516
  5. 0.451
  6. 0.016
  7. 0.24
  8. 0.414
  9. 1.872
  10. 0.459
  11. 1.24
  12. 0.106
  13. 1.386
  14. 0.068
  15. 0.481
  16. 0.403
  17. 0.54
  18. 0.792
  19. 21.36
  20. 4.75
  21. 0.081
  22. 0.564
  23. 2.079
  24. 5.28
  25. 1.809
  26. 16.32
  27. 18.43
  28. 2.812
  29. 1.755
  30. 1.95
  31. 18.13
  32. 0.112
  33. 0.912
  34. 7.22
  35. 0.216
  36. 0.891
  37. 1.044
  38. 0.594
  39. 6.46
  40. 0.704

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