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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 59 · 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. 1.0.7 × 0.11 =
  2. 2.0.87 × 1.1 =
  3. 3.0.63 × 3.2 =
  4. 4.5.2 × 0.9 =
  5. 5.0.67 × 2.7 =
  6. 6.0.08 × 2.1 =
  7. 7.0.57 × 0.8 =
  8. 8.4.9 × 1.7 =
  9. 9.0.87 × 1.1 =
  10. 10.0.78 × 3.5 =
  11. 11.0.23 × 3.1 =
  12. 12.5.7 × 2.2 =
  13. 13.0.25 × 3.1 =
  14. 14.0.29 × 1.6 =
  15. 15.3.3 × 0.9 =
  16. 16.0.47 × 2.3 =
  17. 17.7.2 × 2.2 =
  18. 18.0.44 × 0.8 =
  19. 19.0.92 × 3.2 =
  20. 20.0.08 × 2.8 =
  21. 21.0.71 × 0.3 =
  22. 22.4.2 × 0.21 =
  23. 23.9.6 × 0.06 =
  24. 24.0.41 × 2.4 =
  25. 25.0.2 × 0.29 =
  26. 26.2.1 × 0.4 =
  27. 27.0.37 × 0.8 =
  28. 28.0.04 × 3.6 =
  29. 29.1.7 × 2.3 =
  30. 30.0.48 × 3.9 =
  31. 31.5.7 × 0.35 =
  32. 32.2.5 × 2.5 =
  33. 33.0.2 × 1.5 =
  34. 34.9.8 × 2.7 =
  35. 35.0.75 × 2.8 =
  36. 36.0.36 × 3.9 =
  37. 37.0.72 × 2.2 =
  38. 38.0.32 × 2.1 =
  39. 39.0.14 × 0.2 =
  40. 40.0.45 × 3.6 =

Answer key

  1. 0.077
  2. 0.957
  3. 2.016
  4. 4.68
  5. 1.809
  6. 0.168
  7. 0.456
  8. 8.33
  9. 0.957
  10. 2.73
  11. 0.713
  12. 12.54
  13. 0.775
  14. 0.464
  15. 2.97
  16. 1.081
  17. 15.84
  18. 0.352
  19. 2.944
  20. 0.224
  21. 0.213
  22. 0.882
  23. 0.576
  24. 0.984
  25. 0.058
  26. 0.84
  27. 0.296
  28. 0.144
  29. 3.91
  30. 1.872
  31. 1.995
  32. 6.25
  33. 0.3
  34. 26.46
  35. 2.1
  36. 1.404
  37. 1.584
  38. 0.672
  39. 0.028
  40. 1.62

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