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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 105 · 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. 1.0.34 × 1.7 =
  2. 2.2.1 × 0.4 =
  3. 3.0.38 × 1.6 =
  4. 4.1.3 × 0.13 =
  5. 5.6.1 × 0.13 =
  6. 6.4.4 × 1.3 =
  7. 7.0.93 × 0.6 =
  8. 8.4.7 × 0.17 =
  9. 9.3.6 × 0.35 =
  10. 10.0.81 × 2.8 =
  11. 11.0.71 × 0.4 =
  12. 12.3.8 × 3.1 =
  13. 13.0.81 × 2.2 =
  14. 14.0.34 × 2.1 =
  15. 15.0.48 × 2.6 =
  16. 16.7.7 × 3.4 =
  17. 17.0.9 × 2.2 =
  18. 18.0.34 × 0.2 =
  19. 19.0.4 × 1.3 =
  20. 20.6.8 × 3.8 =
  21. 21.8.5 × 0.37 =
  22. 22.7.2 × 0.02 =
  23. 23.7.5 × 3.9 =
  24. 24.0.61 × 2.1 =
  25. 25.8.4 × 0.26 =
  26. 26.3.8 × 3.5 =
  27. 27.0.5 × 3.9 =
  28. 28.7.1 × 1.1 =
  29. 29.3.2 × 0.09 =
  30. 30.8.6 × 0.5 =
  31. 31.4.3 × 0.9 =
  32. 32.0.38 × 0.7 =
  33. 33.1.5 × 3.6 =
  34. 34.0.42 × 0.2 =
  35. 35.8.9 × 0.7 =
  36. 36.0.96 × 2.2 =
  37. 37.0.34 × 0.2 =
  38. 38.0.25 × 1.4 =
  39. 39.0.45 × 3.6 =
  40. 40.0.52 × 2.9 =

Answer key

  1. 0.578
  2. 0.84
  3. 0.608
  4. 0.169
  5. 0.793
  6. 5.72
  7. 0.558
  8. 0.799
  9. 1.26
  10. 2.268
  11. 0.284
  12. 11.78
  13. 1.782
  14. 0.714
  15. 1.248
  16. 26.18
  17. 1.98
  18. 0.068
  19. 0.52
  20. 25.84
  21. 3.145
  22. 0.144
  23. 29.25
  24. 1.281
  25. 2.184
  26. 13.3
  27. 1.95
  28. 7.81
  29. 0.288
  30. 4.3
  31. 3.87
  32. 0.266
  33. 5.4
  34. 0.084
  35. 6.23
  36. 2.112
  37. 0.068
  38. 0.35
  39. 1.62
  40. 1.508

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