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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 141 · 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. 1.0.76 × 0.3 =
  2. 2.6.2 × 3.6 =
  3. 3.0.89 × 0.3 =
  4. 4.0.05 × 2.1 =
  5. 5.8.6 × 0.09 =
  6. 6.7.1 × 0.04 =
  7. 7.6.1 × 0.16 =
  8. 8.0.71 × 0.6 =
  9. 9.0.87 × 3.3 =
  10. 10.0.81 × 2.1 =
  11. 11.8.3 × 0.12 =
  12. 12.6.8 × 1.4 =
  13. 13.4.1 × 2.2 =
  14. 14.4.9 × 0.37 =
  15. 15.1.4 × 0.17 =
  16. 16.0.74 × 1.1 =
  17. 17.8.9 × 3.3 =
  18. 18.6.8 × 0.24 =
  19. 19.0.37 × 1.4 =
  20. 20.0.26 × 1.1 =
  21. 21.0.11 × 1.8 =
  22. 22.0.65 × 0.6 =
  23. 23.0.6 × 0.7 =
  24. 24.0.7 × 0.33 =
  25. 25.2.6 × 3.1 =
  26. 26.8.1 × 1.2 =
  27. 27.5.1 × 0.37 =
  28. 28.0.48 × 2.6 =
  29. 29.0.38 × 0.3 =
  30. 30.4.6 × 0.31 =
  31. 31.0.84 × 0.2 =
  32. 32.0.12 × 1.1 =
  33. 33.0.51 × 1.1 =
  34. 34.2.7 × 0.9 =
  35. 35.7.7 × 3.1 =
  36. 36.0.85 × 0.4 =
  37. 37.7.5 × 2.1 =
  38. 38.1.4 × 0.4 =
  39. 39.1.1 × 2.9 =
  40. 40.2.1 × 2.2 =

Answer key

  1. 0.228
  2. 22.32
  3. 0.267
  4. 0.105
  5. 0.774
  6. 0.284
  7. 0.976
  8. 0.426
  9. 2.871
  10. 1.701
  11. 0.996
  12. 9.52
  13. 9.02
  14. 1.813
  15. 0.238
  16. 0.814
  17. 29.37
  18. 1.632
  19. 0.518
  20. 0.286
  21. 0.198
  22. 0.39
  23. 0.42
  24. 0.231
  25. 8.06
  26. 9.72
  27. 1.887
  28. 1.248
  29. 0.114
  30. 1.426
  31. 0.168
  32. 0.132
  33. 0.561
  34. 2.43
  35. 23.87
  36. 0.34
  37. 15.75
  38. 0.56
  39. 3.19
  40. 4.62

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