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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 726 · 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. 1.2.3 × 2.6 =
  2. 2.0.17 × 1.8 =
  3. 3.0.66 × 0.5 =
  4. 4.2.7 × 0.22 =
  5. 5.0.03 × 1.4 =
  6. 6.0.09 × 1.6 =
  7. 7.0.78 × 3.5 =
  8. 8.4.9 × 0.21 =
  9. 9.0.64 × 1.5 =
  10. 10.0.41 × 2.6 =
  11. 11.3.5 × 0.36 =
  12. 12.2.7 × 3.9 =
  13. 13.1.8 × 1.3 =
  14. 14.4.3 × 0.8 =
  15. 15.0.54 × 0.6 =
  16. 16.0.25 × 1.2 =
  17. 17.0.48 × 3.4 =
  18. 18.0.26 × 1.7 =
  19. 19.8.4 × 3.3 =
  20. 20.0.41 × 1.1 =
  21. 21.5.4 × 0.02 =
  22. 22.0.04 × 3.2 =
  23. 23.1.6 × 0.06 =
  24. 24.2.5 × 1.4 =
  25. 25.0.2 × 0.6 =
  26. 26.0.27 × 1.3 =
  27. 27.9.1 × 0.3 =
  28. 28.7.4 × 3.9 =
  29. 29.0.11 × 0.4 =
  30. 30.6.7 × 2.7 =
  31. 31.0.23 × 0.8 =
  32. 32.0.18 × 0.8 =
  33. 33.7.9 × 1.5 =
  34. 34.0.97 × 3.3 =
  35. 35.2.9 × 0.6 =
  36. 36.0.39 × 0.9 =
  37. 37.9.1 × 2.5 =
  38. 38.0.29 × 2.6 =
  39. 39.2.1 × 0.23 =
  40. 40.5.6 × 0.02 =

Answer key

  1. 5.98
  2. 0.306
  3. 0.33
  4. 0.594
  5. 0.042
  6. 0.144
  7. 2.73
  8. 1.029
  9. 0.96
  10. 1.066
  11. 1.26
  12. 10.53
  13. 2.34
  14. 3.44
  15. 0.324
  16. 0.3
  17. 1.632
  18. 0.442
  19. 27.72
  20. 0.451
  21. 0.108
  22. 0.128
  23. 0.096
  24. 3.5
  25. 0.12
  26. 0.351
  27. 2.73
  28. 28.86
  29. 0.044
  30. 18.09
  31. 0.184
  32. 0.144
  33. 11.85
  34. 3.201
  35. 1.74
  36. 0.351
  37. 22.75
  38. 0.754
  39. 0.483
  40. 0.112

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