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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 979 · 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. 1.0.11 × 2.6 =
  2. 2.6.8 × 1.9 =
  3. 3.0.89 × 2.5 =
  4. 4.0.6 × 0.08 =
  5. 5.9.1 × 0.07 =
  6. 6.2.4 × 3.7 =
  7. 7.9.7 × 2.1 =
  8. 8.0.5 × 0.18 =
  9. 9.0.45 × 2.3 =
  10. 10.2.1 × 0.6 =
  11. 11.1.5 × 0.15 =
  12. 12.9.9 × 0.35 =
  13. 13.3.9 × 0.13 =
  14. 14.0.83 × 3.4 =
  15. 15.0.08 × 2.5 =
  16. 16.3.1 × 0.34 =
  17. 17.0.31 × 2.1 =
  18. 18.1.2 × 0.12 =
  19. 19.0.31 × 3.5 =
  20. 20.7.1 × 0.3 =
  21. 21.0.21 × 2.9 =
  22. 22.0.91 × 2.9 =
  23. 23.6.9 × 1.8 =
  24. 24.1.7 × 2.2 =
  25. 25.0.82 × 1.7 =
  26. 26.0.14 × 1.6 =
  27. 27.1.8 × 0.11 =
  28. 28.0.59 × 3.4 =
  29. 29.0.68 × 1.9 =
  30. 30.2.1 × 3.9 =
  31. 31.0.2 × 0.35 =
  32. 32.0.18 × 0.8 =
  33. 33.0.93 × 0.2 =
  34. 34.0.88 × 0.2 =
  35. 35.0.23 × 0.8 =
  36. 36.0.71 × 3.7 =
  37. 37.0.8 × 1.2 =
  38. 38.0.3 × 0.03 =
  39. 39.2.4 × 0.32 =
  40. 40.0.05 × 3.8 =

Answer key

  1. 0.286
  2. 12.92
  3. 2.225
  4. 0.048
  5. 0.637
  6. 8.88
  7. 20.37
  8. 0.09
  9. 1.035
  10. 1.26
  11. 0.225
  12. 3.465
  13. 0.507
  14. 2.822
  15. 0.2
  16. 1.054
  17. 0.651
  18. 0.144
  19. 1.085
  20. 2.13
  21. 0.609
  22. 2.639
  23. 12.42
  24. 3.74
  25. 1.394
  26. 0.224
  27. 0.198
  28. 2.006
  29. 1.292
  30. 8.19
  31. 0.07
  32. 0.144
  33. 0.186
  34. 0.176
  35. 0.184
  36. 2.627
  37. 0.96
  38. 0.009
  39. 0.768
  40. 0.19

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