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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 12 · 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. 1.8.5 × 0.08 =
  2. 2.0.03 × 1.1 =
  3. 3.2.7 × 3.5 =
  4. 4.0.35 × 1.6 =
  5. 5.8.8 × 0.3 =
  6. 6.0.14 × 0.3 =
  7. 7.0.15 × 2.7 =
  8. 8.0.07 × 2.9 =
  9. 9.1.7 × 0.31 =
  10. 10.4.7 × 0.14 =
  11. 11.0.31 × 2.1 =
  12. 12.5.2 × 2.5 =
  13. 13.0.09 × 0.6 =
  14. 14.0.33 × 1.2 =
  15. 15.6.7 × 0.26 =
  16. 16.9.9 × 0.23 =
  17. 17.0.25 × 3.1 =
  18. 18.2.3 × 0.5 =
  19. 19.0.55 × 2.6 =
  20. 20.6.4 × 3.1 =
  21. 21.0.26 × 3.3 =
  22. 22.0.99 × 0.7 =
  23. 23.0.78 × 1.5 =
  24. 24.0.86 × 0.9 =
  25. 25.8.1 × 0.25 =
  26. 26.0.26 × 0.4 =
  27. 27.1.8 × 0.23 =
  28. 28.0.07 × 2.2 =
  29. 29.0.57 × 3.4 =
  30. 30.3.9 × 3.5 =
  31. 31.0.18 × 0.4 =
  32. 32.0.44 × 2.9 =
  33. 33.0.41 × 3.9 =
  34. 34.0.42 × 1.5 =
  35. 35.6.4 × 0.13 =
  36. 36.9.9 × 0.6 =
  37. 37.7.1 × 0.11 =
  38. 38.1.1 × 0.6 =
  39. 39.0.23 × 3.6 =
  40. 40.2.7 × 0.7 =

Answer key

  1. 0.68
  2. 0.033
  3. 9.45
  4. 0.56
  5. 2.64
  6. 0.042
  7. 0.405
  8. 0.203
  9. 0.527
  10. 0.658
  11. 0.651
  12. 13
  13. 0.054
  14. 0.396
  15. 1.742
  16. 2.277
  17. 0.775
  18. 1.15
  19. 1.43
  20. 19.84
  21. 0.858
  22. 0.693
  23. 1.17
  24. 0.774
  25. 2.025
  26. 0.104
  27. 0.414
  28. 0.154
  29. 1.938
  30. 13.65
  31. 0.072
  32. 1.276
  33. 1.599
  34. 0.63
  35. 0.832
  36. 5.94
  37. 0.781
  38. 0.66
  39. 0.828
  40. 1.89

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