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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 72 · 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. 1.0.14 × 1.1 =
  2. 2.0.14 × 0.7 =
  3. 3.0.04 × 1.8 =
  4. 4.5.8 × 1.9 =
  5. 5.0.91 × 3.5 =
  6. 6.0.67 × 3.2 =
  7. 7.6.1 × 2.2 =
  8. 8.0.44 × 3.1 =
  9. 9.1.6 × 1.9 =
  10. 10.0.77 × 3.2 =
  11. 11.6.1 × 0.25 =
  12. 12.0.21 × 1.2 =
  13. 13.0.4 × 1.1 =
  14. 14.0.9 × 0.19 =
  15. 15.0.37 × 0.8 =
  16. 16.0.97 × 3.8 =
  17. 17.3.1 × 0.09 =
  18. 18.3.6 × 0.37 =
  19. 19.0.56 × 1.8 =
  20. 20.2.7 × 2.9 =
  21. 21.0.37 × 3.7 =
  22. 22.0.23 × 2.6 =
  23. 23.6.3 × 0.08 =
  24. 24.0.49 × 0.8 =
  25. 25.0.93 × 1.4 =
  26. 26.0.8 × 2.9 =
  27. 27.0.75 × 1.1 =
  28. 28.0.58 × 2.8 =
  29. 29.9.8 × 2.6 =
  30. 30.0.27 × 2.1 =
  31. 31.4.7 × 0.5 =
  32. 32.4.2 × 1.5 =
  33. 33.0.13 × 0.8 =
  34. 34.0.71 × 3.1 =
  35. 35.0.54 × 1.2 =
  36. 36.0.39 × 3.3 =
  37. 37.1.7 × 0.03 =
  38. 38.0.81 × 1.4 =
  39. 39.0.9 × 2.8 =
  40. 40.0.52 × 3.3 =

Answer key

  1. 0.154
  2. 0.098
  3. 0.072
  4. 11.02
  5. 3.185
  6. 2.144
  7. 13.42
  8. 1.364
  9. 3.04
  10. 2.464
  11. 1.525
  12. 0.252
  13. 0.44
  14. 0.171
  15. 0.296
  16. 3.686
  17. 0.279
  18. 1.332
  19. 1.008
  20. 7.83
  21. 1.369
  22. 0.598
  23. 0.504
  24. 0.392
  25. 1.302
  26. 2.32
  27. 0.825
  28. 1.624
  29. 25.48
  30. 0.567
  31. 2.35
  32. 6.3
  33. 0.104
  34. 2.201
  35. 0.648
  36. 1.287
  37. 0.051
  38. 1.134
  39. 2.52
  40. 1.716

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