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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 931 · 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. 1.0.39 × 3.2 =
  2. 2.3.8 × 3.7 =
  3. 3.2.5 × 0.12 =
  4. 4.0.21 × 1.2 =
  5. 5.9.5 × 0.16 =
  6. 6.6.9 × 0.13 =
  7. 7.3.8 × 0.13 =
  8. 8.5.1 × 0.27 =
  9. 9.1.6 × 1.1 =
  10. 10.0.45 × 1.8 =
  11. 11.7.1 × 0.3 =
  12. 12.0.88 × 2.7 =
  13. 13.0.45 × 0.7 =
  14. 14.0.11 × 1.5 =
  15. 15.0.79 × 3.3 =
  16. 16.0.73 × 2.7 =
  17. 17.0.65 × 0.2 =
  18. 18.0.79 × 1.1 =
  19. 19.0.64 × 1.9 =
  20. 20.5.5 × 0.15 =
  21. 21.8.5 × 2.9 =
  22. 22.4.9 × 1.4 =
  23. 23.5.9 × 0.11 =
  24. 24.0.41 × 1.9 =
  25. 25.0.42 × 1.3 =
  26. 26.0.18 × 1.1 =
  27. 27.8.1 × 0.18 =
  28. 28.6.8 × 1.8 =
  29. 29.6.3 × 0.26 =
  30. 30.1.3 × 0.04 =
  31. 31.8.1 × 3.9 =
  32. 32.9.1 × 0.5 =
  33. 33.3.5 × 0.39 =
  34. 34.7.8 × 3.4 =
  35. 35.0.92 × 2.2 =
  36. 36.6.3 × 3.4 =
  37. 37.0.36 × 1.1 =
  38. 38.0.45 × 0.7 =
  39. 39.4.5 × 1.5 =
  40. 40.0.08 × 3.1 =

Answer key

  1. 1.248
  2. 14.06
  3. 0.3
  4. 0.252
  5. 1.52
  6. 0.897
  7. 0.494
  8. 1.377
  9. 1.76
  10. 0.81
  11. 2.13
  12. 2.376
  13. 0.315
  14. 0.165
  15. 2.607
  16. 1.971
  17. 0.13
  18. 0.869
  19. 1.216
  20. 0.825
  21. 24.65
  22. 6.86
  23. 0.649
  24. 0.779
  25. 0.546
  26. 0.198
  27. 1.458
  28. 12.24
  29. 1.638
  30. 0.052
  31. 31.59
  32. 4.55
  33. 1.365
  34. 26.52
  35. 2.024
  36. 21.42
  37. 0.396
  38. 0.315
  39. 6.75
  40. 0.248

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