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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 136 · 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. 1.5.1 × 0.11 =
  2. 2.0.63 × 1.5 =
  3. 3.5.6 × 0.8 =
  4. 4.5.3 × 3.7 =
  5. 5.0.7 × 0.38 =
  6. 6.0.24 × 1.8 =
  7. 7.0.41 × 2.3 =
  8. 8.0.06 × 0.2 =
  9. 9.4.2 × 0.3 =
  10. 10.0.14 × 2.9 =
  11. 11.2.8 × 0.03 =
  12. 12.0.11 × 0.7 =
  13. 13.0.84 × 2.4 =
  14. 14.0.29 × 0.4 =
  15. 15.0.58 × 1.3 =
  16. 16.1.2 × 0.04 =
  17. 17.9.9 × 3.1 =
  18. 18.0.07 × 1.6 =
  19. 19.0.63 × 2.4 =
  20. 20.0.46 × 2.6 =
  21. 21.0.2 × 2.9 =
  22. 22.0.28 × 0.3 =
  23. 23.5.5 × 1.1 =
  24. 24.9.2 × 0.2 =
  25. 25.5.6 × 0.07 =
  26. 26.4.2 × 0.2 =
  27. 27.2.2 × 0.27 =
  28. 28.0.12 × 3.1 =
  29. 29.0.47 × 1.9 =
  30. 30.9.1 × 0.27 =
  31. 31.7.7 × 0.23 =
  32. 32.0.44 × 1.1 =
  33. 33.0.84 × 0.2 =
  34. 34.0.18 × 3.8 =
  35. 35.0.66 × 0.2 =
  36. 36.4.1 × 0.13 =
  37. 37.9.2 × 0.34 =
  38. 38.8.2 × 0.8 =
  39. 39.8.6 × 0.09 =
  40. 40.5.1 × 2.7 =

Answer key

  1. 0.561
  2. 0.945
  3. 4.48
  4. 19.61
  5. 0.266
  6. 0.432
  7. 0.943
  8. 0.012
  9. 1.26
  10. 0.406
  11. 0.084
  12. 0.077
  13. 2.016
  14. 0.116
  15. 0.754
  16. 0.048
  17. 30.69
  18. 0.112
  19. 1.512
  20. 1.196
  21. 0.58
  22. 0.084
  23. 6.05
  24. 1.84
  25. 0.392
  26. 0.84
  27. 0.594
  28. 0.372
  29. 0.893
  30. 2.457
  31. 1.771
  32. 0.484
  33. 0.168
  34. 0.684
  35. 0.132
  36. 0.533
  37. 3.128
  38. 6.56
  39. 0.774
  40. 13.77

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