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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 510 · 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. 1.0.59 × 2.4 =
  2. 2.7.8 × 0.29 =
  3. 3.0.9 × 0.3 =
  4. 4.0.27 × 0.2 =
  5. 5.4.1 × 0.28 =
  6. 6.1.7 × 2.6 =
  7. 7.1.2 × 0.03 =
  8. 8.0.63 × 2.9 =
  9. 9.3.7 × 0.13 =
  10. 10.1.8 × 2.2 =
  11. 11.5.8 × 0.14 =
  12. 12.0.8 × 0.38 =
  13. 13.1.4 × 1.5 =
  14. 14.8.9 × 0.08 =
  15. 15.0.61 × 2.4 =
  16. 16.0.12 × 2.6 =
  17. 17.0.36 × 1.1 =
  18. 18.0.18 × 1.4 =
  19. 19.0.09 × 3.5 =
  20. 20.0.15 × 1.1 =
  21. 21.0.62 × 2.1 =
  22. 22.0.39 × 1.1 =
  23. 23.0.27 × 0.8 =
  24. 24.2.8 × 0.3 =
  25. 25.0.11 × 2.6 =
  26. 26.0.66 × 3.9 =
  27. 27.0.62 × 1.1 =
  28. 28.3.2 × 0.9 =
  29. 29.0.64 × 0.9 =
  30. 30.0.85 × 1.1 =
  31. 31.0.7 × 0.08 =
  32. 32.0.7 × 1.2 =
  33. 33.5.2 × 0.07 =
  34. 34.4.1 × 0.29 =
  35. 35.5.3 × 3.1 =
  36. 36.0.72 × 1.4 =
  37. 37.3.1 × 0.21 =
  38. 38.7.3 × 1.6 =
  39. 39.0.31 × 0.4 =
  40. 40.9.6 × 0.9 =

Answer key

  1. 1.416
  2. 2.262
  3. 0.27
  4. 0.054
  5. 1.148
  6. 4.42
  7. 0.036
  8. 1.827
  9. 0.481
  10. 3.96
  11. 0.812
  12. 0.304
  13. 2.1
  14. 0.712
  15. 1.464
  16. 0.312
  17. 0.396
  18. 0.252
  19. 0.315
  20. 0.165
  21. 1.302
  22. 0.429
  23. 0.216
  24. 0.84
  25. 0.286
  26. 2.574
  27. 0.682
  28. 2.88
  29. 0.576
  30. 0.935
  31. 0.056
  32. 0.84
  33. 0.364
  34. 1.189
  35. 16.43
  36. 1.008
  37. 0.651
  38. 11.68
  39. 0.124
  40. 8.64

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