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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 284 · 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. 1.0.74 × 3.1 =
  2. 2.0.26 × 2.6 =
  3. 3.2.1 × 0.24 =
  4. 4.5.7 × 3.4 =
  5. 5.0.24 × 3.5 =
  6. 6.6.7 × 0.34 =
  7. 7.4.6 × 3.4 =
  8. 8.2.1 × 2.9 =
  9. 9.0.45 × 0.2 =
  10. 10.2.2 × 0.04 =
  11. 11.0.57 × 0.4 =
  12. 12.0.16 × 1.9 =
  13. 13.8.5 × 0.03 =
  14. 14.0.71 × 2.5 =
  15. 15.4.1 × 2.7 =
  16. 16.5.7 × 0.28 =
  17. 17.0.61 × 2.2 =
  18. 18.3.6 × 0.03 =
  19. 19.0.42 × 0.5 =
  20. 20.2.7 × 0.27 =
  21. 21.5.5 × 2.1 =
  22. 22.0.29 × 0.8 =
  23. 23.0.08 × 2.4 =
  24. 24.0.27 × 0.7 =
  25. 25.0.56 × 0.6 =
  26. 26.0.53 × 0.6 =
  27. 27.0.96 × 2.2 =
  28. 28.0.32 × 1.2 =
  29. 29.0.21 × 1.1 =
  30. 30.0.78 × 0.4 =
  31. 31.0.19 × 2.3 =
  32. 32.0.46 × 2.2 =
  33. 33.0.75 × 1.9 =
  34. 34.0.25 × 1.9 =
  35. 35.1.1 × 3.9 =
  36. 36.8.1 × 0.02 =
  37. 37.0.77 × 2.5 =
  38. 38.5.9 × 1.6 =
  39. 39.0.65 × 3.7 =
  40. 40.0.38 × 1.1 =

Answer key

  1. 2.294
  2. 0.676
  3. 0.504
  4. 19.38
  5. 0.84
  6. 2.278
  7. 15.64
  8. 6.09
  9. 0.09
  10. 0.088
  11. 0.228
  12. 0.304
  13. 0.255
  14. 1.775
  15. 11.07
  16. 1.596
  17. 1.342
  18. 0.108
  19. 0.21
  20. 0.729
  21. 11.55
  22. 0.232
  23. 0.192
  24. 0.189
  25. 0.336
  26. 0.318
  27. 2.112
  28. 0.384
  29. 0.231
  30. 0.312
  31. 0.437
  32. 1.012
  33. 1.425
  34. 0.475
  35. 4.29
  36. 0.162
  37. 1.925
  38. 9.44
  39. 2.405
  40. 0.418

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