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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 126 · 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. 1.0.38 × 0.4 =
  2. 2.7.4 × 1.7 =
  3. 3.0.76 × 2.1 =
  4. 4.0.06 × 3.4 =
  5. 5.0.09 × 1.1 =
  6. 6.0.92 × 1.4 =
  7. 7.0.91 × 1.2 =
  8. 8.6.1 × 1.2 =
  9. 9.3.6 × 0.12 =
  10. 10.0.23 × 1.2 =
  11. 11.5.7 × 3.8 =
  12. 12.3.9 × 0.21 =
  13. 13.0.29 × 0.2 =
  14. 14.0.8 × 0.08 =
  15. 15.0.13 × 0.7 =
  16. 16.6.8 × 0.08 =
  17. 17.0.34 × 1.7 =
  18. 18.0.89 × 3.7 =
  19. 19.0.89 × 2.8 =
  20. 20.3.3 × 3.5 =
  21. 21.0.41 × 1.2 =
  22. 22.9.1 × 0.22 =
  23. 23.4.4 × 2.3 =
  24. 24.0.76 × 0.9 =
  25. 25.6.8 × 0.18 =
  26. 26.6.9 × 1.3 =
  27. 27.3.4 × 0.03 =
  28. 28.3.7 × 0.5 =
  29. 29.7.1 × 3.8 =
  30. 30.0.76 × 1.9 =
  31. 31.7.6 × 0.21 =
  32. 32.0.29 × 1.1 =
  33. 33.0.27 × 3.8 =
  34. 34.0.51 × 2.2 =
  35. 35.0.76 × 3.7 =
  36. 36.0.82 × 2.9 =
  37. 37.0.78 × 2.3 =
  38. 38.0.79 × 1.8 =
  39. 39.4.1 × 0.6 =
  40. 40.0.48 × 1.8 =

Answer key

  1. 0.152
  2. 12.58
  3. 1.596
  4. 0.204
  5. 0.099
  6. 1.288
  7. 1.092
  8. 7.32
  9. 0.432
  10. 0.276
  11. 21.66
  12. 0.819
  13. 0.058
  14. 0.064
  15. 0.091
  16. 0.544
  17. 0.578
  18. 3.293
  19. 2.492
  20. 11.55
  21. 0.492
  22. 2.002
  23. 10.12
  24. 0.684
  25. 1.224
  26. 8.97
  27. 0.102
  28. 1.85
  29. 26.98
  30. 1.444
  31. 1.596
  32. 0.319
  33. 1.026
  34. 1.122
  35. 2.812
  36. 2.378
  37. 1.794
  38. 1.422
  39. 2.46
  40. 0.864

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