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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 31 · 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. 1.1.3 × 0.06 =
  2. 2.6.3 × 0.9 =
  3. 3.0.92 × 1.7 =
  4. 4.5.1 × 0.11 =
  5. 5.0.51 × 2.3 =
  6. 6.6.7 × 3.7 =
  7. 7.5.7 × 2.3 =
  8. 8.0.45 × 0.9 =
  9. 9.2.6 × 3.7 =
  10. 10.2.1 × 0.31 =
  11. 11.0.82 × 1.7 =
  12. 12.7.9 × 1.3 =
  13. 13.0.21 × 1.5 =
  14. 14.0.99 × 1.4 =
  15. 15.0.4 × 0.16 =
  16. 16.8.8 × 2.6 =
  17. 17.6.1 × 0.35 =
  18. 18.0.22 × 1.3 =
  19. 19.9.6 × 0.9 =
  20. 20.3.5 × 0.06 =
  21. 21.0.86 × 2.1 =
  22. 22.0.11 × 2.2 =
  23. 23.0.57 × 3.1 =
  24. 24.7.6 × 0.09 =
  25. 25.4.6 × 0.6 =
  26. 26.0.16 × 2.8 =
  27. 27.0.26 × 3.7 =
  28. 28.0.99 × 1.9 =
  29. 29.3.1 × 0.24 =
  30. 30.9.5 × 0.5 =
  31. 31.0.46 × 0.5 =
  32. 32.0.03 × 3.1 =
  33. 33.9.1 × 0.23 =
  34. 34.6.1 × 0.14 =
  35. 35.0.65 × 0.6 =
  36. 36.7.2 × 2.9 =
  37. 37.7.4 × 0.09 =
  38. 38.7.1 × 0.31 =
  39. 39.5.9 × 0.31 =
  40. 40.4.5 × 0.36 =

Answer key

  1. 0.078
  2. 5.67
  3. 1.564
  4. 0.561
  5. 1.173
  6. 24.79
  7. 13.11
  8. 0.405
  9. 9.62
  10. 0.651
  11. 1.394
  12. 10.27
  13. 0.315
  14. 1.386
  15. 0.064
  16. 22.88
  17. 2.135
  18. 0.286
  19. 8.64
  20. 0.21
  21. 1.806
  22. 0.242
  23. 1.767
  24. 0.684
  25. 2.76
  26. 0.448
  27. 0.962
  28. 1.881
  29. 0.744
  30. 4.75
  31. 0.23
  32. 0.093
  33. 2.093
  34. 0.854
  35. 0.39
  36. 20.88
  37. 0.666
  38. 2.201
  39. 1.829
  40. 1.62

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