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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 829 · 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. 1.2.8 × 0.08 =
  2. 2.0.8 × 0.7 =
  3. 3.5.7 × 0.36 =
  4. 4.7.8 × 3.9 =
  5. 5.2.6 × 0.29 =
  6. 6.0.35 × 1.1 =
  7. 7.0.12 × 3.4 =
  8. 8.5.6 × 0.31 =
  9. 9.0.7 × 0.25 =
  10. 10.0.44 × 2.5 =
  11. 11.9.1 × 0.25 =
  12. 12.0.6 × 3.5 =
  13. 13.0.71 × 1.1 =
  14. 14.3.2 × 1.9 =
  15. 15.7.7 × 0.18 =
  16. 16.0.91 × 2.6 =
  17. 17.2.9 × 3.5 =
  18. 18.0.48 × 0.4 =
  19. 19.0.47 × 3.2 =
  20. 20.3.2 × 2.2 =
  21. 21.9.3 × 0.6 =
  22. 22.0.28 × 0.8 =
  23. 23.1.9 × 0.8 =
  24. 24.6.4 × 0.18 =
  25. 25.0.56 × 2.2 =
  26. 26.0.35 × 3.9 =
  27. 27.0.36 × 0.3 =
  28. 28.9.8 × 1.2 =
  29. 29.8.7 × 0.09 =
  30. 30.0.64 × 0.9 =
  31. 31.4.5 × 0.24 =
  32. 32.0.3 × 0.9 =
  33. 33.0.09 × 1.1 =
  34. 34.8.6 × 3.5 =
  35. 35.9.8 × 0.14 =
  36. 36.1.7 × 3.1 =
  37. 37.0.29 × 1.2 =
  38. 38.6.7 × 3.3 =
  39. 39.4.4 × 1.2 =
  40. 40.6.1 × 0.27 =

Answer key

  1. 0.224
  2. 0.56
  3. 2.052
  4. 30.42
  5. 0.754
  6. 0.385
  7. 0.408
  8. 1.736
  9. 0.175
  10. 1.1
  11. 2.275
  12. 2.1
  13. 0.781
  14. 6.08
  15. 1.386
  16. 2.366
  17. 10.15
  18. 0.192
  19. 1.504
  20. 7.04
  21. 5.58
  22. 0.224
  23. 1.52
  24. 1.152
  25. 1.232
  26. 1.365
  27. 0.108
  28. 11.76
  29. 0.783
  30. 0.576
  31. 1.08
  32. 0.27
  33. 0.099
  34. 30.1
  35. 1.372
  36. 5.27
  37. 0.348
  38. 22.11
  39. 5.28
  40. 1.647

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