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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 780 · 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. 1.4.8 × 0.8 =
  2. 2.9.7 × 3.8 =
  3. 3.1.3 × 2.8 =
  4. 4.0.84 × 2.5 =
  5. 5.0.37 × 3.4 =
  6. 6.0.81 × 0.7 =
  7. 7.2.9 × 0.21 =
  8. 8.8.7 × 0.06 =
  9. 9.6.5 × 0.23 =
  10. 10.0.4 × 3.6 =
  11. 11.8.4 × 0.02 =
  12. 12.0.75 × 2.3 =
  13. 13.4.1 × 0.25 =
  14. 14.6.9 × 0.32 =
  15. 15.9.1 × 2.7 =
  16. 16.3.3 × 0.12 =
  17. 17.5.1 × 0.09 =
  18. 18.0.92 × 2.6 =
  19. 19.0.35 × 3.1 =
  20. 20.8.2 × 0.19 =
  21. 21.3.9 × 3.2 =
  22. 22.3.8 × 0.16 =
  23. 23.4.9 × 0.36 =
  24. 24.9.1 × 0.02 =
  25. 25.3.3 × 0.21 =
  26. 26.0.8 × 0.25 =
  27. 27.2.8 × 0.26 =
  28. 28.7.7 × 1.1 =
  29. 29.2.7 × 0.21 =
  30. 30.4.1 × 3.6 =
  31. 31.1.3 × 0.21 =
  32. 32.9.9 × 3.1 =
  33. 33.0.92 × 2.7 =
  34. 34.1.3 × 3.4 =
  35. 35.0.61 × 1.2 =
  36. 36.2.1 × 0.08 =
  37. 37.1.6 × 0.5 =
  38. 38.0.32 × 1.1 =
  39. 39.5.6 × 0.18 =
  40. 40.8.6 × 0.2 =

Answer key

  1. 3.84
  2. 36.86
  3. 3.64
  4. 2.1
  5. 1.258
  6. 0.567
  7. 0.609
  8. 0.522
  9. 1.495
  10. 1.44
  11. 0.168
  12. 1.725
  13. 1.025
  14. 2.208
  15. 24.57
  16. 0.396
  17. 0.459
  18. 2.392
  19. 1.085
  20. 1.558
  21. 12.48
  22. 0.608
  23. 1.764
  24. 0.182
  25. 0.693
  26. 0.2
  27. 0.728
  28. 8.47
  29. 0.567
  30. 14.76
  31. 0.273
  32. 30.69
  33. 2.484
  34. 4.42
  35. 0.732
  36. 0.168
  37. 0.8
  38. 0.352
  39. 1.008
  40. 1.72

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