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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 191 · 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. 1.3.5 × 0.21 =
  2. 2.9.6 × 0.26 =
  3. 3.1.9 × 0.15 =
  4. 4.7.3 × 0.03 =
  5. 5.2.9 × 0.33 =
  6. 6.0.56 × 0.9 =
  7. 7.0.05 × 3.6 =
  8. 8.3.7 × 0.35 =
  9. 9.0.2 × 3.9 =
  10. 10.0.84 × 0.6 =
  11. 11.0.59 × 0.4 =
  12. 12.0.74 × 2.3 =
  13. 13.0.42 × 2.8 =
  14. 14.4.4 × 1.4 =
  15. 15.0.3 × 0.14 =
  16. 16.0.14 × 0.4 =
  17. 17.0.94 × 2.5 =
  18. 18.0.69 × 2.2 =
  19. 19.0.68 × 1.3 =
  20. 20.8.8 × 0.09 =
  21. 21.5.8 × 3.7 =
  22. 22.0.15 × 2.4 =
  23. 23.4.9 × 3.7 =
  24. 24.2.1 × 1.6 =
  25. 25.5.5 × 2.8 =
  26. 26.2.8 × 0.19 =
  27. 27.3.5 × 2.2 =
  28. 28.7.2 × 1.8 =
  29. 29.5.2 × 2.1 =
  30. 30.1.1 × 0.31 =
  31. 31.0.5 × 0.21 =
  32. 32.0.3 × 0.7 =
  33. 33.2.4 × 0.06 =
  34. 34.0.89 × 1.1 =
  35. 35.0.75 × 2.2 =
  36. 36.0.42 × 0.8 =
  37. 37.3.7 × 0.26 =
  38. 38.5.1 × 1.7 =
  39. 39.2.5 × 0.22 =
  40. 40.4.5 × 0.5 =

Answer key

  1. 0.735
  2. 2.496
  3. 0.285
  4. 0.219
  5. 0.957
  6. 0.504
  7. 0.18
  8. 1.295
  9. 0.78
  10. 0.504
  11. 0.236
  12. 1.702
  13. 1.176
  14. 6.16
  15. 0.042
  16. 0.056
  17. 2.35
  18. 1.518
  19. 0.884
  20. 0.792
  21. 21.46
  22. 0.36
  23. 18.13
  24. 3.36
  25. 15.4
  26. 0.532
  27. 7.7
  28. 12.96
  29. 10.92
  30. 0.341
  31. 0.105
  32. 0.21
  33. 0.144
  34. 0.979
  35. 1.65
  36. 0.336
  37. 0.962
  38. 8.67
  39. 0.55
  40. 2.25

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