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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 861 · 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. 1.0.3 × 1.5 =
  2. 2.0.69 × 3.5 =
  3. 3.2.8 × 1.1 =
  4. 4.0.74 × 1.1 =
  5. 5.0.61 × 2.1 =
  6. 6.6.7 × 0.12 =
  7. 7.6.3 × 3.7 =
  8. 8.0.69 × 2.9 =
  9. 9.0.61 × 2.6 =
  10. 10.6.3 × 0.11 =
  11. 11.0.12 × 0.2 =
  12. 12.4.2 × 2.7 =
  13. 13.0.76 × 3.9 =
  14. 14.4.5 × 2.8 =
  15. 15.4.2 × 3.9 =
  16. 16.7.8 × 0.26 =
  17. 17.8.5 × 3.5 =
  18. 18.1.7 × 0.34 =
  19. 19.4.7 × 1.5 =
  20. 20.8.4 × 2.2 =
  21. 21.1.3 × 0.06 =
  22. 22.0.23 × 1.5 =
  23. 23.0.41 × 3.3 =
  24. 24.0.58 × 3.1 =
  25. 25.5.2 × 0.12 =
  26. 26.8.1 × 3.9 =
  27. 27.0.99 × 3.9 =
  28. 28.0.91 × 3.6 =
  29. 29.1.7 × 0.31 =
  30. 30.1.1 × 3.4 =
  31. 31.4.5 × 2.6 =
  32. 32.0.23 × 3.9 =
  33. 33.5.5 × 0.29 =
  34. 34.0.47 × 3.6 =
  35. 35.0.05 × 0.6 =
  36. 36.0.16 × 2.9 =
  37. 37.0.64 × 0.6 =
  38. 38.9.4 × 3.1 =
  39. 39.0.96 × 0.2 =
  40. 40.0.19 × 0.3 =

Answer key

  1. 0.45
  2. 2.415
  3. 3.08
  4. 0.814
  5. 1.281
  6. 0.804
  7. 23.31
  8. 2.001
  9. 1.586
  10. 0.693
  11. 0.024
  12. 11.34
  13. 2.964
  14. 12.6
  15. 16.38
  16. 2.028
  17. 29.75
  18. 0.578
  19. 7.05
  20. 18.48
  21. 0.078
  22. 0.345
  23. 1.353
  24. 1.798
  25. 0.624
  26. 31.59
  27. 3.861
  28. 3.276
  29. 0.527
  30. 3.74
  31. 11.7
  32. 0.897
  33. 1.595
  34. 1.692
  35. 0.03
  36. 0.464
  37. 0.384
  38. 29.14
  39. 0.192
  40. 0.057

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