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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 788 · 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. 1.4.7 × 1.6 =
  2. 2.7.9 × 1.1 =
  3. 3.9.8 × 1.4 =
  4. 4.0.67 × 1.6 =
  5. 5.0.36 × 2.8 =
  6. 6.0.61 × 3.4 =
  7. 7.1.4 × 0.11 =
  8. 8.0.46 × 0.3 =
  9. 9.0.08 × 2.1 =
  10. 10.5.2 × 0.3 =
  11. 11.7.3 × 0.21 =
  12. 12.0.21 × 2.2 =
  13. 13.3.1 × 1.2 =
  14. 14.0.93 × 3.1 =
  15. 15.0.71 × 2.8 =
  16. 16.2.2 × 2.2 =
  17. 17.0.76 × 3.3 =
  18. 18.3.3 × 1.4 =
  19. 19.2.6 × 2.5 =
  20. 20.4.6 × 1.8 =
  21. 21.0.75 × 3.2 =
  22. 22.0.53 × 0.3 =
  23. 23.0.46 × 1.1 =
  24. 24.9.8 × 0.6 =
  25. 25.3.6 × 3.7 =
  26. 26.6.8 × 1.3 =
  27. 27.1.2 × 1.4 =
  28. 28.0.4 × 1.6 =
  29. 29.0.85 × 1.6 =
  30. 30.0.41 × 0.4 =
  31. 31.3.7 × 0.39 =
  32. 32.8.1 × 2.6 =
  33. 33.8.1 × 0.18 =
  34. 34.0.68 × 3.1 =
  35. 35.0.08 × 1.6 =
  36. 36.5.9 × 0.39 =
  37. 37.0.02 × 1.9 =
  38. 38.2.6 × 0.06 =
  39. 39.0.37 × 1.6 =
  40. 40.5.5 × 3.4 =

Answer key

  1. 7.52
  2. 8.69
  3. 13.72
  4. 1.072
  5. 1.008
  6. 2.074
  7. 0.154
  8. 0.138
  9. 0.168
  10. 1.56
  11. 1.533
  12. 0.462
  13. 3.72
  14. 2.883
  15. 1.988
  16. 4.84
  17. 2.508
  18. 4.62
  19. 6.5
  20. 8.28
  21. 2.4
  22. 0.159
  23. 0.506
  24. 5.88
  25. 13.32
  26. 8.84
  27. 1.68
  28. 0.64
  29. 1.36
  30. 0.164
  31. 1.443
  32. 21.06
  33. 1.458
  34. 2.108
  35. 0.128
  36. 2.301
  37. 0.038
  38. 0.156
  39. 0.592
  40. 18.7

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