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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 71 · 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. 1.0.12 × 0.5 =
  2. 2.0.31 × 0.7 =
  3. 3.9.1 × 0.14 =
  4. 4.0.58 × 0.8 =
  5. 5.2.3 × 1.6 =
  6. 6.0.5 × 2.1 =
  7. 7.6.2 × 0.26 =
  8. 8.0.07 × 2.9 =
  9. 9.8.1 × 0.16 =
  10. 10.4.4 × 1.1 =
  11. 11.6.1 × 0.31 =
  12. 12.2.2 × 0.09 =
  13. 13.4.8 × 0.7 =
  14. 14.4.1 × 2.1 =
  15. 15.0.49 × 2.1 =
  16. 16.3.1 × 1.6 =
  17. 17.0.91 × 3.8 =
  18. 18.7.5 × 3.1 =
  19. 19.0.19 × 2.1 =
  20. 20.8.5 × 0.02 =
  21. 21.0.15 × 1.1 =
  22. 22.0.31 × 0.6 =
  23. 23.0.79 × 1.2 =
  24. 24.0.34 × 1.9 =
  25. 25.0.6 × 0.03 =
  26. 26.1.3 × 0.22 =
  27. 27.7.5 × 0.34 =
  28. 28.0.35 × 2.9 =
  29. 29.9.4 × 1.6 =
  30. 30.0.84 × 3.1 =
  31. 31.1.9 × 2.3 =
  32. 32.7.8 × 0.19 =
  33. 33.0.21 × 2.2 =
  34. 34.9.3 × 0.12 =
  35. 35.2.2 × 0.17 =
  36. 36.0.65 × 2.2 =
  37. 37.6.8 × 3.2 =
  38. 38.0.06 × 2.9 =
  39. 39.0.79 × 0.7 =
  40. 40.0.37 × 1.6 =

Answer key

  1. 0.06
  2. 0.217
  3. 1.274
  4. 0.464
  5. 3.68
  6. 1.05
  7. 1.612
  8. 0.203
  9. 1.296
  10. 4.84
  11. 1.891
  12. 0.198
  13. 3.36
  14. 8.61
  15. 1.029
  16. 4.96
  17. 3.458
  18. 23.25
  19. 0.399
  20. 0.17
  21. 0.165
  22. 0.186
  23. 0.948
  24. 0.646
  25. 0.018
  26. 0.286
  27. 2.55
  28. 1.015
  29. 15.04
  30. 2.604
  31. 4.37
  32. 1.482
  33. 0.462
  34. 1.116
  35. 0.374
  36. 1.43
  37. 21.76
  38. 0.174
  39. 0.553
  40. 0.592

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