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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 399 · 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. 1.6.3 × 0.2 =
  2. 2.3.7 × 2.4 =
  3. 3.0.11 × 1.5 =
  4. 4.7.9 × 0.8 =
  5. 5.0.91 × 1.8 =
  6. 6.0.3 × 0.11 =
  7. 7.0.53 × 2.1 =
  8. 8.0.15 × 1.9 =
  9. 9.0.12 × 3.2 =
  10. 10.9.4 × 2.2 =
  11. 11.0.7 × 0.23 =
  12. 12.0.38 × 3.7 =
  13. 13.1.1 × 1.1 =
  14. 14.1.6 × 0.37 =
  15. 15.9.2 × 1.5 =
  16. 16.2.5 × 0.6 =
  17. 17.6.8 × 0.27 =
  18. 18.1.7 × 3.7 =
  19. 19.0.13 × 0.9 =
  20. 20.0.03 × 1.4 =
  21. 21.0.17 × 1.1 =
  22. 22.0.81 × 1.1 =
  23. 23.5.7 × 0.03 =
  24. 24.0.92 × 0.8 =
  25. 25.0.42 × 3.5 =
  26. 26.3.4 × 1.7 =
  27. 27.2.5 × 0.7 =
  28. 28.0.81 × 2.9 =
  29. 29.0.93 × 1.5 =
  30. 30.9.1 × 0.31 =
  31. 31.0.71 × 0.6 =
  32. 32.4.5 × 0.29 =
  33. 33.0.6 × 1.2 =
  34. 34.0.9 × 0.11 =
  35. 35.0.12 × 1.8 =
  36. 36.0.91 × 2.1 =
  37. 37.0.3 × 0.33 =
  38. 38.2.2 × 2.6 =
  39. 39.0.9 × 0.21 =
  40. 40.3.7 × 0.9 =

Answer key

  1. 1.26
  2. 8.88
  3. 0.165
  4. 6.32
  5. 1.638
  6. 0.033
  7. 1.113
  8. 0.285
  9. 0.384
  10. 20.68
  11. 0.161
  12. 1.406
  13. 1.21
  14. 0.592
  15. 13.8
  16. 1.5
  17. 1.836
  18. 6.29
  19. 0.117
  20. 0.042
  21. 0.187
  22. 0.891
  23. 0.171
  24. 0.736
  25. 1.47
  26. 5.78
  27. 1.75
  28. 2.349
  29. 1.395
  30. 2.821
  31. 0.426
  32. 1.305
  33. 0.72
  34. 0.099
  35. 0.216
  36. 1.911
  37. 0.099
  38. 5.72
  39. 0.189
  40. 3.33

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