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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 415 · 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. 1.7.2 × 0.35 =
  2. 2.0.78 × 2.6 =
  3. 3.4.2 × 0.39 =
  4. 4.0.16 × 2.2 =
  5. 5.9.8 × 0.02 =
  6. 6.1.3 × 0.2 =
  7. 7.4.5 × 0.3 =
  8. 8.3.1 × 0.31 =
  9. 9.4.1 × 0.14 =
  10. 10.8.8 × 1.8 =
  11. 11.1.3 × 1.7 =
  12. 12.1.5 × 3.9 =
  13. 13.0.97 × 1.3 =
  14. 14.1.1 × 0.26 =
  15. 15.0.13 × 1.2 =
  16. 16.0.41 × 1.1 =
  17. 17.5.6 × 1.1 =
  18. 18.6.1 × 1.1 =
  19. 19.0.26 × 2.9 =
  20. 20.0.49 × 0.6 =
  21. 21.4.3 × 0.35 =
  22. 22.0.2 × 0.07 =
  23. 23.0.53 × 2.2 =
  24. 24.0.81 × 0.6 =
  25. 25.7.2 × 0.21 =
  26. 26.2.7 × 0.22 =
  27. 27.2.9 × 0.31 =
  28. 28.1.3 × 3.5 =
  29. 29.0.39 × 1.2 =
  30. 30.0.61 × 2.2 =
  31. 31.7.3 × 3.6 =
  32. 32.8.1 × 0.28 =
  33. 33.7.3 × 0.6 =
  34. 34.1.5 × 1.2 =
  35. 35.0.97 × 1.6 =
  36. 36.6.8 × 0.08 =
  37. 37.0.94 × 1.8 =
  38. 38.8.6 × 0.06 =
  39. 39.0.03 × 2.9 =
  40. 40.1.6 × 0.06 =

Answer key

  1. 2.52
  2. 2.028
  3. 1.638
  4. 0.352
  5. 0.196
  6. 0.26
  7. 1.35
  8. 0.961
  9. 0.574
  10. 15.84
  11. 2.21
  12. 5.85
  13. 1.261
  14. 0.286
  15. 0.156
  16. 0.451
  17. 6.16
  18. 6.71
  19. 0.754
  20. 0.294
  21. 1.505
  22. 0.014
  23. 1.166
  24. 0.486
  25. 1.512
  26. 0.594
  27. 0.899
  28. 4.55
  29. 0.468
  30. 1.342
  31. 26.28
  32. 2.268
  33. 4.38
  34. 1.8
  35. 1.552
  36. 0.544
  37. 1.692
  38. 0.516
  39. 0.087
  40. 0.096

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