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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 609 · 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. 1.4.8 × 0.15 =
  2. 2.8.7 × 0.32 =
  3. 3.1.9 × 0.6 =
  4. 4.0.36 × 1.9 =
  5. 5.1.8 × 2.7 =
  6. 6.0.72 × 1.1 =
  7. 7.2.3 × 3.2 =
  8. 8.5.4 × 0.09 =
  9. 9.2.2 × 0.02 =
  10. 10.0.75 × 3.6 =
  11. 11.6.1 × 0.35 =
  12. 12.0.67 × 0.7 =
  13. 13.0.48 × 1.6 =
  14. 14.9.2 × 2.3 =
  15. 15.8.1 × 0.6 =
  16. 16.0.73 × 1.9 =
  17. 17.5.9 × 0.22 =
  18. 18.0.98 × 0.5 =
  19. 19.2.9 × 3.1 =
  20. 20.0.22 × 3.5 =
  21. 21.0.5 × 1.3 =
  22. 22.0.25 × 3.8 =
  23. 23.8.7 × 0.09 =
  24. 24.5.1 × 0.02 =
  25. 25.5.3 × 3.4 =
  26. 26.0.9 × 3.5 =
  27. 27.0.8 × 0.33 =
  28. 28.2.5 × 3.2 =
  29. 29.7.1 × 0.05 =
  30. 30.0.21 × 1.9 =
  31. 31.0.56 × 1.4 =
  32. 32.1.6 × 2.7 =
  33. 33.0.36 × 0.6 =
  34. 34.9.1 × 1.1 =
  35. 35.0.13 × 1.2 =
  36. 36.0.78 × 2.2 =
  37. 37.0.18 × 1.1 =
  38. 38.5.4 × 0.26 =
  39. 39.0.73 × 1.1 =
  40. 40.0.96 × 2.4 =

Answer key

  1. 0.72
  2. 2.784
  3. 1.14
  4. 0.684
  5. 4.86
  6. 0.792
  7. 7.36
  8. 0.486
  9. 0.044
  10. 2.7
  11. 2.135
  12. 0.469
  13. 0.768
  14. 21.16
  15. 4.86
  16. 1.387
  17. 1.298
  18. 0.49
  19. 8.99
  20. 0.77
  21. 0.65
  22. 0.95
  23. 0.783
  24. 0.102
  25. 18.02
  26. 3.15
  27. 0.264
  28. 8
  29. 0.355
  30. 0.399
  31. 0.784
  32. 4.32
  33. 0.216
  34. 10.01
  35. 0.156
  36. 1.716
  37. 0.198
  38. 1.404
  39. 0.803
  40. 2.304

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