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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 840 · 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. 1.0.91 × 0.3 =
  2. 2.4.1 × 0.11 =
  3. 3.0.8 × 0.24 =
  4. 4.1.7 × 0.14 =
  5. 5.0.04 × 2.9 =
  6. 6.6.5 × 0.34 =
  7. 7.0.46 × 3.7 =
  8. 8.9.3 × 0.22 =
  9. 9.5.9 × 0.7 =
  10. 10.0.06 × 3.4 =
  11. 11.4.1 × 0.27 =
  12. 12.0.59 × 2.2 =
  13. 13.0.11 × 1.5 =
  14. 14.4.6 × 2.8 =
  15. 15.0.54 × 2.4 =
  16. 16.3.1 × 0.31 =
  17. 17.5.4 × 0.03 =
  18. 18.5.2 × 0.08 =
  19. 19.2.3 × 0.06 =
  20. 20.6.2 × 3.9 =
  21. 21.7.5 × 0.18 =
  22. 22.0.97 × 1.7 =
  23. 23.0.6 × 0.09 =
  24. 24.0.47 × 3.7 =
  25. 25.2.2 × 0.39 =
  26. 26.3.8 × 2.7 =
  27. 27.0.46 × 2.8 =
  28. 28.0.76 × 0.8 =
  29. 29.1.6 × 0.3 =
  30. 30.6.6 × 2.4 =
  31. 31.0.98 × 0.9 =
  32. 32.0.22 × 1.2 =
  33. 33.0.31 × 1.2 =
  34. 34.0.93 × 2.2 =
  35. 35.0.74 × 3.5 =
  36. 36.4.6 × 1.8 =
  37. 37.0.11 × 1.2 =
  38. 38.0.22 × 0.2 =
  39. 39.4.5 × 2.9 =
  40. 40.8.2 × 3.7 =

Answer key

  1. 0.273
  2. 0.451
  3. 0.192
  4. 0.238
  5. 0.116
  6. 2.21
  7. 1.702
  8. 2.046
  9. 4.13
  10. 0.204
  11. 1.107
  12. 1.298
  13. 0.165
  14. 12.88
  15. 1.296
  16. 0.961
  17. 0.162
  18. 0.416
  19. 0.138
  20. 24.18
  21. 1.35
  22. 1.649
  23. 0.054
  24. 1.739
  25. 0.858
  26. 10.26
  27. 1.288
  28. 0.608
  29. 0.48
  30. 15.84
  31. 0.882
  32. 0.264
  33. 0.372
  34. 2.046
  35. 2.59
  36. 8.28
  37. 0.132
  38. 0.044
  39. 13.05
  40. 30.34

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