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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 624 · 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. 1.5.1 × 1.6 =
  2. 2.2.1 × 1.3 =
  3. 3.5.5 × 0.11 =
  4. 4.9.1 × 1.4 =
  5. 5.5.9 × 1.5 =
  6. 6.2.5 × 0.05 =
  7. 7.1.9 × 0.02 =
  8. 8.0.13 × 0.9 =
  9. 9.0.41 × 0.6 =
  10. 10.0.59 × 1.8 =
  11. 11.0.07 × 2.1 =
  12. 12.0.81 × 0.8 =
  13. 13.9.3 × 3.6 =
  14. 14.9.1 × 0.36 =
  15. 15.0.14 × 3.5 =
  16. 16.5.2 × 2.7 =
  17. 17.2.7 × 0.4 =
  18. 18.8.1 × 0.36 =
  19. 19.7.1 × 0.13 =
  20. 20.0.5 × 1.1 =
  21. 21.2.2 × 0.9 =
  22. 22.7.8 × 0.28 =
  23. 23.0.41 × 1.9 =
  24. 24.0.06 × 0.3 =
  25. 25.6.3 × 3.1 =
  26. 26.0.21 × 3.1 =
  27. 27.0.05 × 2.8 =
  28. 28.1.5 × 1.6 =
  29. 29.1.6 × 0.11 =
  30. 30.8.2 × 0.11 =
  31. 31.0.58 × 0.9 =
  32. 32.4.1 × 0.28 =
  33. 33.9.1 × 0.26 =
  34. 34.0.81 × 3.7 =
  35. 35.0.95 × 1.2 =
  36. 36.0.64 × 2.6 =
  37. 37.1.1 × 0.2 =
  38. 38.0.19 × 2.2 =
  39. 39.8.1 × 0.11 =
  40. 40.0.93 × 0.2 =

Answer key

  1. 8.16
  2. 2.73
  3. 0.605
  4. 12.74
  5. 8.85
  6. 0.125
  7. 0.038
  8. 0.117
  9. 0.246
  10. 1.062
  11. 0.147
  12. 0.648
  13. 33.48
  14. 3.276
  15. 0.49
  16. 14.04
  17. 1.08
  18. 2.916
  19. 0.923
  20. 0.55
  21. 1.98
  22. 2.184
  23. 0.779
  24. 0.018
  25. 19.53
  26. 0.651
  27. 0.14
  28. 2.4
  29. 0.176
  30. 0.902
  31. 0.522
  32. 1.148
  33. 2.366
  34. 2.997
  35. 1.14
  36. 1.664
  37. 0.22
  38. 0.418
  39. 0.891
  40. 0.186

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