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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 578 · 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. 1.0.13 × 2.1 =
  2. 2.0.92 × 2.9 =
  3. 3.0.22 × 1.5 =
  4. 4.3.4 × 0.26 =
  5. 5.7.8 × 0.36 =
  6. 6.0.75 × 2.2 =
  7. 7.0.2 × 0.16 =
  8. 8.3.1 × 1.8 =
  9. 9.6.1 × 0.12 =
  10. 10.0.11 × 2.5 =
  11. 11.0.35 × 0.9 =
  12. 12.3.9 × 1.1 =
  13. 13.3.3 × 0.26 =
  14. 14.0.63 × 2.8 =
  15. 15.0.9 × 3.5 =
  16. 16.2.4 × 0.5 =
  17. 17.0.9 × 0.05 =
  18. 18.0.43 × 1.3 =
  19. 19.4.9 × 0.26 =
  20. 20.5.7 × 0.25 =
  21. 21.0.51 × 0.5 =
  22. 22.5.5 × 0.33 =
  23. 23.0.59 × 3.5 =
  24. 24.0.89 × 3.9 =
  25. 25.1.1 × 1.1 =
  26. 26.9.8 × 0.04 =
  27. 27.0.9 × 0.16 =
  28. 28.0.5 × 0.9 =
  29. 29.0.05 × 2.1 =
  30. 30.0.61 × 1.7 =
  31. 31.0.47 × 1.4 =
  32. 32.0.31 × 2.3 =
  33. 33.0.16 × 0.9 =
  34. 34.8.9 × 0.36 =
  35. 35.9.9 × 3.7 =
  36. 36.8.3 × 0.19 =
  37. 37.0.22 × 0.7 =
  38. 38.1.9 × 0.02 =
  39. 39.0.28 × 1.2 =
  40. 40.0.54 × 0.4 =

Answer key

  1. 0.273
  2. 2.668
  3. 0.33
  4. 0.884
  5. 2.808
  6. 1.65
  7. 0.032
  8. 5.58
  9. 0.732
  10. 0.275
  11. 0.315
  12. 4.29
  13. 0.858
  14. 1.764
  15. 3.15
  16. 1.2
  17. 0.045
  18. 0.559
  19. 1.274
  20. 1.425
  21. 0.255
  22. 1.815
  23. 2.065
  24. 3.471
  25. 1.21
  26. 0.392
  27. 0.144
  28. 0.45
  29. 0.105
  30. 1.037
  31. 0.658
  32. 0.713
  33. 0.144
  34. 3.204
  35. 36.63
  36. 1.577
  37. 0.154
  38. 0.038
  39. 0.336
  40. 0.216

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