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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 252 · 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. 1.4.6 × 1.1 =
  2. 2.0.03 × 0.7 =
  3. 3.0.81 × 3.8 =
  4. 4.6.1 × 3.2 =
  5. 5.3.9 × 2.9 =
  6. 6.5.8 × 1.2 =
  7. 7.0.76 × 2.1 =
  8. 8.0.98 × 1.1 =
  9. 9.8.3 × 0.24 =
  10. 10.8.5 × 1.3 =
  11. 11.0.52 × 0.4 =
  12. 12.2.2 × 0.26 =
  13. 13.0.48 × 0.4 =
  14. 14.4.4 × 0.27 =
  15. 15.0.11 × 1.5 =
  16. 16.7.9 × 2.8 =
  17. 17.9.5 × 2.3 =
  18. 18.2.3 × 2.8 =
  19. 19.0.71 × 1.3 =
  20. 20.0.57 × 1.1 =
  21. 21.0.92 × 1.1 =
  22. 22.0.51 × 1.4 =
  23. 23.8.4 × 1.6 =
  24. 24.2.8 × 0.24 =
  25. 25.0.8 × 0.07 =
  26. 26.6.4 × 3.4 =
  27. 27.8.5 × 0.11 =
  28. 28.2.4 × 0.12 =
  29. 29.6.6 × 3.5 =
  30. 30.0.94 × 3.5 =
  31. 31.4.8 × 0.37 =
  32. 32.0.24 × 2.2 =
  33. 33.0.24 × 0.3 =
  34. 34.1.1 × 0.7 =
  35. 35.0.42 × 0.9 =
  36. 36.7.9 × 0.14 =
  37. 37.0.04 × 3.4 =
  38. 38.5.3 × 0.6 =
  39. 39.3.3 × 2.5 =
  40. 40.9.6 × 0.21 =

Answer key

  1. 5.06
  2. 0.021
  3. 3.078
  4. 19.52
  5. 11.31
  6. 6.96
  7. 1.596
  8. 1.078
  9. 1.992
  10. 11.05
  11. 0.208
  12. 0.572
  13. 0.192
  14. 1.188
  15. 0.165
  16. 22.12
  17. 21.85
  18. 6.44
  19. 0.923
  20. 0.627
  21. 1.012
  22. 0.714
  23. 13.44
  24. 0.672
  25. 0.056
  26. 21.76
  27. 0.935
  28. 0.288
  29. 23.1
  30. 3.29
  31. 1.776
  32. 0.528
  33. 0.072
  34. 0.77
  35. 0.378
  36. 1.106
  37. 0.136
  38. 3.18
  39. 8.25
  40. 2.016

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