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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 854 · 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 × 3.5 =
  2. 2.0.13 × 0.4 =
  3. 3.0.02 × 1.7 =
  4. 4.0.96 × 3.7 =
  5. 5.0.94 × 1.1 =
  6. 6.7.1 × 3.1 =
  7. 7.2.1 × 0.06 =
  8. 8.5.3 × 0.23 =
  9. 9.0.3 × 3.7 =
  10. 10.1.1 × 3.4 =
  11. 11.0.04 × 3.5 =
  12. 12.0.76 × 0.5 =
  13. 13.0.4 × 0.5 =
  14. 14.4.1 × 0.21 =
  15. 15.6.1 × 2.7 =
  16. 16.5.4 × 1.1 =
  17. 17.0.71 × 0.7 =
  18. 18.1.2 × 0.11 =
  19. 19.8.2 × 0.17 =
  20. 20.3.9 × 2.3 =
  21. 21.0.91 × 2.6 =
  22. 22.0.62 × 0.2 =
  23. 23.0.2 × 0.31 =
  24. 24.0.61 × 1.6 =
  25. 25.0.85 × 3.1 =
  26. 26.0.97 × 3.1 =
  27. 27.3.8 × 0.06 =
  28. 28.0.08 × 3.2 =
  29. 29.4.5 × 0.7 =
  30. 30.0.6 × 0.37 =
  31. 31.3.6 × 0.26 =
  32. 32.3.8 × 2.9 =
  33. 33.5.9 × 0.07 =
  34. 34.8.2 × 1.1 =
  35. 35.5.8 × 3.8 =
  36. 36.0.94 × 1.3 =
  37. 37.0.86 × 1.3 =
  38. 38.0.29 × 1.1 =
  39. 39.4.4 × 0.23 =
  40. 40.3.1 × 3.1 =

Answer key

  1. 3.01
  2. 0.052
  3. 0.034
  4. 3.552
  5. 1.034
  6. 22.01
  7. 0.126
  8. 1.219
  9. 1.11
  10. 3.74
  11. 0.14
  12. 0.38
  13. 0.2
  14. 0.861
  15. 16.47
  16. 5.94
  17. 0.497
  18. 0.132
  19. 1.394
  20. 8.97
  21. 2.366
  22. 0.124
  23. 0.062
  24. 0.976
  25. 2.635
  26. 3.007
  27. 0.228
  28. 0.256
  29. 3.15
  30. 0.222
  31. 0.936
  32. 11.02
  33. 0.413
  34. 9.02
  35. 22.04
  36. 1.222
  37. 1.118
  38. 0.319
  39. 1.012
  40. 9.61

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