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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 180 · 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. 1.0.88 × 2.4 =
  2. 2.0.61 × 1.6 =
  3. 3.8.4 × 0.26 =
  4. 4.6.1 × 0.33 =
  5. 5.0.5 × 0.18 =
  6. 6.2.1 × 0.02 =
  7. 7.0.96 × 3.6 =
  8. 8.8.1 × 0.5 =
  9. 9.0.11 × 2.2 =
  10. 10.0.71 × 2.6 =
  11. 11.0.3 × 2.6 =
  12. 12.9.5 × 0.03 =
  13. 13.0.98 × 2.1 =
  14. 14.0.51 × 0.6 =
  15. 15.0.77 × 1.3 =
  16. 16.0.42 × 1.7 =
  17. 17.0.21 × 0.8 =
  18. 18.1.7 × 2.6 =
  19. 19.0.81 × 2.5 =
  20. 20.1.1 × 0.7 =
  21. 21.0.46 × 0.4 =
  22. 22.0.66 × 3.8 =
  23. 23.1.7 × 0.26 =
  24. 24.0.89 × 0.6 =
  25. 25.1.2 × 3.5 =
  26. 26.0.35 × 2.7 =
  27. 27.3.8 × 0.12 =
  28. 28.0.57 × 3.6 =
  29. 29.7.4 × 0.3 =
  30. 30.0.91 × 2.7 =
  31. 31.0.32 × 1.9 =
  32. 32.0.5 × 0.11 =
  33. 33.0.42 × 0.2 =
  34. 34.0.33 × 3.3 =
  35. 35.0.43 × 0.6 =
  36. 36.5.4 × 3.6 =
  37. 37.0.03 × 0.8 =
  38. 38.0.34 × 3.7 =
  39. 39.3.9 × 0.22 =
  40. 40.0.57 × 2.5 =

Answer key

  1. 2.112
  2. 0.976
  3. 2.184
  4. 2.013
  5. 0.09
  6. 0.042
  7. 3.456
  8. 4.05
  9. 0.242
  10. 1.846
  11. 0.78
  12. 0.285
  13. 2.058
  14. 0.306
  15. 1.001
  16. 0.714
  17. 0.168
  18. 4.42
  19. 2.025
  20. 0.77
  21. 0.184
  22. 2.508
  23. 0.442
  24. 0.534
  25. 4.2
  26. 0.945
  27. 0.456
  28. 2.052
  29. 2.22
  30. 2.457
  31. 0.608
  32. 0.055
  33. 0.084
  34. 1.089
  35. 0.258
  36. 19.44
  37. 0.024
  38. 1.258
  39. 0.858
  40. 1.425

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