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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 658 · 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. 1.0.65 × 1.5 =
  2. 2.0.81 × 3.2 =
  3. 3.2.7 × 0.03 =
  4. 4.7.4 × 0.03 =
  5. 5.0.17 × 1.2 =
  6. 6.0.25 × 1.1 =
  7. 7.4.7 × 3.4 =
  8. 8.9.3 × 3.9 =
  9. 9.3.8 × 0.31 =
  10. 10.0.29 × 1.1 =
  11. 11.1.2 × 0.24 =
  12. 12.7.5 × 0.6 =
  13. 13.0.54 × 1.1 =
  14. 14.1.2 × 2.1 =
  15. 15.5.1 × 2.7 =
  16. 16.0.12 × 0.8 =
  17. 17.0.12 × 3.2 =
  18. 18.3.8 × 0.4 =
  19. 19.0.75 × 1.8 =
  20. 20.0.61 × 0.4 =
  21. 21.0.9 × 0.9 =
  22. 22.2.6 × 0.19 =
  23. 23.5.6 × 0.28 =
  24. 24.6.5 × 1.4 =
  25. 25.0.96 × 2.8 =
  26. 26.1.1 × 0.22 =
  27. 27.9.2 × 0.21 =
  28. 28.0.79 × 1.1 =
  29. 29.0.44 × 2.6 =
  30. 30.1.4 × 1.1 =
  31. 31.6.1 × 0.21 =
  32. 32.9.1 × 0.15 =
  33. 33.7.8 × 1.8 =
  34. 34.0.31 × 0.8 =
  35. 35.4.5 × 0.11 =
  36. 36.2.1 × 1.2 =
  37. 37.4.6 × 3.9 =
  38. 38.1.3 × 0.29 =
  39. 39.7.1 × 2.9 =
  40. 40.0.67 × 3.3 =

Answer key

  1. 0.975
  2. 2.592
  3. 0.081
  4. 0.222
  5. 0.204
  6. 0.275
  7. 15.98
  8. 36.27
  9. 1.178
  10. 0.319
  11. 0.288
  12. 4.5
  13. 0.594
  14. 2.52
  15. 13.77
  16. 0.096
  17. 0.384
  18. 1.52
  19. 1.35
  20. 0.244
  21. 0.81
  22. 0.494
  23. 1.568
  24. 9.1
  25. 2.688
  26. 0.242
  27. 1.932
  28. 0.869
  29. 1.144
  30. 1.54
  31. 1.281
  32. 1.365
  33. 14.04
  34. 0.248
  35. 0.495
  36. 2.52
  37. 17.94
  38. 0.377
  39. 20.59
  40. 2.211

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