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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 913 · 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. 1.5.5 × 3.4 =
  2. 2.0.88 × 3.6 =
  3. 3.7.5 × 0.23 =
  4. 4.0.96 × 2.1 =
  5. 5.0.45 × 1.5 =
  6. 6.0.23 × 3.9 =
  7. 7.6.3 × 0.06 =
  8. 8.0.11 × 2.1 =
  9. 9.3.5 × 1.8 =
  10. 10.6.4 × 1.9 =
  11. 11.0.02 × 3.7 =
  12. 12.6.3 × 0.05 =
  13. 13.0.92 × 2.5 =
  14. 14.0.91 × 0.8 =
  15. 15.0.74 × 2.3 =
  16. 16.0.98 × 2.6 =
  17. 17.0.29 × 2.5 =
  18. 18.5.6 × 0.18 =
  19. 19.0.85 × 3.1 =
  20. 20.8.4 × 0.33 =
  21. 21.0.61 × 1.7 =
  22. 22.0.04 × 1.1 =
  23. 23.7.9 × 0.26 =
  24. 24.0.28 × 2.7 =
  25. 25.0.45 × 2.8 =
  26. 26.8.1 × 0.28 =
  27. 27.0.59 × 0.5 =
  28. 28.0.72 × 0.5 =
  29. 29.8.1 × 0.04 =
  30. 30.3.1 × 0.34 =
  31. 31.2.1 × 0.23 =
  32. 32.0.75 × 0.4 =
  33. 33.2.4 × 1.4 =
  34. 34.8.8 × 1.5 =
  35. 35.0.95 × 3.9 =
  36. 36.0.78 × 3.1 =
  37. 37.4.2 × 3.2 =
  38. 38.0.19 × 2.3 =
  39. 39.0.61 × 3.8 =
  40. 40.0.75 × 3.4 =

Answer key

  1. 18.7
  2. 3.168
  3. 1.725
  4. 2.016
  5. 0.675
  6. 0.897
  7. 0.378
  8. 0.231
  9. 6.3
  10. 12.16
  11. 0.074
  12. 0.315
  13. 2.3
  14. 0.728
  15. 1.702
  16. 2.548
  17. 0.725
  18. 1.008
  19. 2.635
  20. 2.772
  21. 1.037
  22. 0.044
  23. 2.054
  24. 0.756
  25. 1.26
  26. 2.268
  27. 0.295
  28. 0.36
  29. 0.324
  30. 1.054
  31. 0.483
  32. 0.3
  33. 3.36
  34. 13.2
  35. 3.705
  36. 2.418
  37. 13.44
  38. 0.437
  39. 2.318
  40. 2.55

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