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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 745 · 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. 1.8.8 × 0.6 =
  2. 2.2.8 × 0.18 =
  3. 3.2.1 × 0.07 =
  4. 4.0.08 × 2.6 =
  5. 5.0.98 × 0.4 =
  6. 6.1.1 × 0.24 =
  7. 7.7.2 × 0.8 =
  8. 8.3.1 × 1.2 =
  9. 9.0.12 × 3.3 =
  10. 10.9.2 × 0.08 =
  11. 11.8.7 × 0.17 =
  12. 12.0.5 × 0.4 =
  13. 13.0.94 × 3.5 =
  14. 14.9.1 × 0.24 =
  15. 15.0.14 × 3.1 =
  16. 16.0.68 × 0.4 =
  17. 17.2.5 × 3.1 =
  18. 18.7.8 × 0.22 =
  19. 19.1.1 × 3.3 =
  20. 20.3.6 × 0.19 =
  21. 21.2.5 × 0.07 =
  22. 22.4.3 × 0.06 =
  23. 23.0.51 × 1.7 =
  24. 24.0.03 × 3.6 =
  25. 25.0.81 × 2.7 =
  26. 26.7.3 × 3.8 =
  27. 27.0.84 × 3.1 =
  28. 28.0.84 × 1.1 =
  29. 29.0.98 × 1.1 =
  30. 30.0.58 × 0.3 =
  31. 31.0.18 × 2.6 =
  32. 32.0.88 × 3.9 =
  33. 33.8.1 × 3.8 =
  34. 34.0.93 × 0.7 =
  35. 35.5.8 × 1.2 =
  36. 36.7.1 × 0.37 =
  37. 37.0.11 × 2.6 =
  38. 38.2.6 × 1.2 =
  39. 39.0.62 × 1.1 =
  40. 40.5.8 × 0.32 =

Answer key

  1. 5.28
  2. 0.504
  3. 0.147
  4. 0.208
  5. 0.392
  6. 0.264
  7. 5.76
  8. 3.72
  9. 0.396
  10. 0.736
  11. 1.479
  12. 0.2
  13. 3.29
  14. 2.184
  15. 0.434
  16. 0.272
  17. 7.75
  18. 1.716
  19. 3.63
  20. 0.684
  21. 0.175
  22. 0.258
  23. 0.867
  24. 0.108
  25. 2.187
  26. 27.74
  27. 2.604
  28. 0.924
  29. 1.078
  30. 0.174
  31. 0.468
  32. 3.432
  33. 30.78
  34. 0.651
  35. 6.96
  36. 2.627
  37. 0.286
  38. 3.12
  39. 0.682
  40. 1.856

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