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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 51 · 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. 1.0.06 × 1.1 =
  2. 2.0.32 × 1.9 =
  3. 3.0.03 × 3.2 =
  4. 4.9.5 × 1.1 =
  5. 5.4.3 × 1.1 =
  6. 6.8.3 × 0.5 =
  7. 7.8.1 × 3.7 =
  8. 8.0.12 × 3.1 =
  9. 9.3.4 × 0.4 =
  10. 10.0.44 × 1.2 =
  11. 11.0.3 × 0.9 =
  12. 12.9.2 × 3.3 =
  13. 13.0.09 × 2.1 =
  14. 14.1.5 × 0.13 =
  15. 15.4.5 × 2.1 =
  16. 16.0.16 × 3.5 =
  17. 17.0.6 × 0.33 =
  18. 18.7.7 × 1.5 =
  19. 19.0.17 × 1.3 =
  20. 20.0.06 × 1.6 =
  21. 21.1.9 × 1.2 =
  22. 22.0.64 × 3.1 =
  23. 23.0.18 × 3.7 =
  24. 24.0.4 × 0.05 =
  25. 25.4.1 × 3.4 =
  26. 26.0.13 × 1.8 =
  27. 27.0.03 × 1.1 =
  28. 28.3.1 × 0.37 =
  29. 29.1.9 × 0.2 =
  30. 30.0.53 × 1.2 =
  31. 31.0.82 × 0.2 =
  32. 32.0.47 × 3.6 =
  33. 33.7.4 × 0.29 =
  34. 34.0.85 × 0.3 =
  35. 35.0.99 × 3.8 =
  36. 36.0.87 × 2.5 =
  37. 37.0.87 × 3.7 =
  38. 38.2.9 × 0.08 =
  39. 39.1.1 × 2.2 =
  40. 40.0.66 × 1.4 =

Answer key

  1. 0.066
  2. 0.608
  3. 0.096
  4. 10.45
  5. 4.73
  6. 4.15
  7. 29.97
  8. 0.372
  9. 1.36
  10. 0.528
  11. 0.27
  12. 30.36
  13. 0.189
  14. 0.195
  15. 9.45
  16. 0.56
  17. 0.198
  18. 11.55
  19. 0.221
  20. 0.096
  21. 2.28
  22. 1.984
  23. 0.666
  24. 0.02
  25. 13.94
  26. 0.234
  27. 0.033
  28. 1.147
  29. 0.38
  30. 0.636
  31. 0.164
  32. 1.692
  33. 2.146
  34. 0.255
  35. 3.762
  36. 2.175
  37. 3.219
  38. 0.232
  39. 2.42
  40. 0.924

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