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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 898 · 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. 1.2.6 × 0.34 =
  2. 2.5.4 × 3.5 =
  3. 3.0.75 × 0.5 =
  4. 4.0.57 × 1.7 =
  5. 5.0.17 × 3.9 =
  6. 6.0.03 × 3.8 =
  7. 7.0.45 × 0.4 =
  8. 8.2.3 × 2.4 =
  9. 9.7.4 × 2.1 =
  10. 10.3.5 × 0.8 =
  11. 11.6.1 × 3.5 =
  12. 12.1.5 × 3.6 =
  13. 13.6.5 × 2.5 =
  14. 14.0.94 × 1.5 =
  15. 15.7.5 × 0.29 =
  16. 16.3.6 × 2.6 =
  17. 17.3.4 × 0.11 =
  18. 18.0.17 × 2.9 =
  19. 19.1.2 × 0.21 =
  20. 20.0.61 × 1.6 =
  21. 21.2.9 × 1.8 =
  22. 22.0.44 × 0.4 =
  23. 23.9.3 × 2.1 =
  24. 24.3.8 × 0.38 =
  25. 25.0.81 × 1.5 =
  26. 26.0.11 × 3.4 =
  27. 27.1.3 × 3.2 =
  28. 28.2.1 × 0.8 =
  29. 29.7.7 × 0.29 =
  30. 30.0.65 × 3.4 =
  31. 31.0.21 × 2.6 =
  32. 32.0.54 × 1.1 =
  33. 33.2.8 × 0.36 =
  34. 34.7.9 × 0.7 =
  35. 35.0.77 × 1.2 =
  36. 36.0.16 × 2.6 =
  37. 37.2.7 × 0.28 =
  38. 38.1.7 × 0.15 =
  39. 39.0.45 × 2.1 =
  40. 40.0.36 × 1.9 =

Answer key

  1. 0.884
  2. 18.9
  3. 0.375
  4. 0.969
  5. 0.663
  6. 0.114
  7. 0.18
  8. 5.52
  9. 15.54
  10. 2.8
  11. 21.35
  12. 5.4
  13. 16.25
  14. 1.41
  15. 2.175
  16. 9.36
  17. 0.374
  18. 0.493
  19. 0.252
  20. 0.976
  21. 5.22
  22. 0.176
  23. 19.53
  24. 1.444
  25. 1.215
  26. 0.374
  27. 4.16
  28. 1.68
  29. 2.233
  30. 2.21
  31. 0.546
  32. 0.594
  33. 1.008
  34. 5.53
  35. 0.924
  36. 0.416
  37. 0.756
  38. 0.255
  39. 0.945
  40. 0.684

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