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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 756 · 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. 1.0.56 × 3.5 =
  2. 2.0.78 × 2.6 =
  3. 3.5.6 × 0.17 =
  4. 4.5.8 × 0.3 =
  5. 5.9.5 × 0.08 =
  6. 6.7.8 × 0.09 =
  7. 7.6.9 × 1.9 =
  8. 8.0.02 × 0.7 =
  9. 9.3.1 × 0.03 =
  10. 10.8.4 × 3.7 =
  11. 11.2.4 × 0.36 =
  12. 12.0.13 × 1.3 =
  13. 13.4.7 × 2.1 =
  14. 14.0.88 × 0.7 =
  15. 15.2.2 × 0.8 =
  16. 16.0.93 × 1.2 =
  17. 17.0.91 × 1.1 =
  18. 18.1.7 × 0.2 =
  19. 19.0.45 × 2.9 =
  20. 20.4.9 × 0.03 =
  21. 21.0.68 × 1.3 =
  22. 22.3.9 × 0.07 =
  23. 23.3.7 × 2.6 =
  24. 24.2.8 × 1.3 =
  25. 25.7.1 × 0.36 =
  26. 26.0.61 × 3.8 =
  27. 27.9.1 × 1.1 =
  28. 28.0.79 × 1.1 =
  29. 29.0.91 × 1.1 =
  30. 30.0.88 × 0.6 =
  31. 31.2.2 × 0.06 =
  32. 32.1.5 × 2.3 =
  33. 33.4.4 × 0.9 =
  34. 34.5.4 × 3.9 =
  35. 35.4.6 × 0.31 =
  36. 36.0.76 × 2.2 =
  37. 37.9.5 × 0.08 =
  38. 38.8.8 × 1.1 =
  39. 39.0.29 × 3.2 =
  40. 40.1.4 × 0.05 =

Answer key

  1. 1.96
  2. 2.028
  3. 0.952
  4. 1.74
  5. 0.76
  6. 0.702
  7. 13.11
  8. 0.014
  9. 0.093
  10. 31.08
  11. 0.864
  12. 0.169
  13. 9.87
  14. 0.616
  15. 1.76
  16. 1.116
  17. 1.001
  18. 0.34
  19. 1.305
  20. 0.147
  21. 0.884
  22. 0.273
  23. 9.62
  24. 3.64
  25. 2.556
  26. 2.318
  27. 10.01
  28. 0.869
  29. 1.001
  30. 0.528
  31. 0.132
  32. 3.45
  33. 3.96
  34. 21.06
  35. 1.426
  36. 1.672
  37. 0.76
  38. 9.68
  39. 0.928
  40. 0.07

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