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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 171 · 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. 1.7.4 × 2.6 =
  2. 2.9.6 × 1.1 =
  3. 3.0.49 × 3.9 =
  4. 4.7.9 × 0.07 =
  5. 5.0.69 × 0.7 =
  6. 6.6.9 × 1.4 =
  7. 7.1.6 × 0.5 =
  8. 8.0.32 × 1.3 =
  9. 9.1.6 × 1.3 =
  10. 10.0.27 × 2.1 =
  11. 11.5.3 × 0.11 =
  12. 12.2.3 × 0.09 =
  13. 13.2.6 × 2.1 =
  14. 14.0.14 × 3.6 =
  15. 15.8.2 × 1.9 =
  16. 16.5.9 × 0.09 =
  17. 17.0.9 × 0.38 =
  18. 18.0.16 × 3.2 =
  19. 19.1.1 × 3.8 =
  20. 20.0.92 × 1.4 =
  21. 21.0.84 × 3.4 =
  22. 22.1.2 × 0.9 =
  23. 23.9.2 × 0.35 =
  24. 24.5.6 × 0.4 =
  25. 25.9.6 × 3.3 =
  26. 26.0.8 × 0.3 =
  27. 27.3.4 × 0.08 =
  28. 28.1.6 × 0.11 =
  29. 29.6.8 × 0.13 =
  30. 30.2.8 × 1.4 =
  31. 31.0.26 × 3.2 =
  32. 32.0.72 × 1.9 =
  33. 33.3.4 × 0.16 =
  34. 34.2.8 × 2.5 =
  35. 35.8.3 × 1.7 =
  36. 36.0.09 × 1.6 =
  37. 37.2.2 × 0.18 =
  38. 38.0.47 × 2.4 =
  39. 39.0.92 × 2.8 =
  40. 40.5.3 × 1.3 =

Answer key

  1. 19.24
  2. 10.56
  3. 1.911
  4. 0.553
  5. 0.483
  6. 9.66
  7. 0.8
  8. 0.416
  9. 2.08
  10. 0.567
  11. 0.583
  12. 0.207
  13. 5.46
  14. 0.504
  15. 15.58
  16. 0.531
  17. 0.342
  18. 0.512
  19. 4.18
  20. 1.288
  21. 2.856
  22. 1.08
  23. 3.22
  24. 2.24
  25. 31.68
  26. 0.24
  27. 0.272
  28. 0.176
  29. 0.884
  30. 3.92
  31. 0.832
  32. 1.368
  33. 0.544
  34. 7
  35. 14.11
  36. 0.144
  37. 0.396
  38. 1.128
  39. 2.576
  40. 6.89

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