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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 52 · 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. 1.0.04 × 2.2 =
  2. 2.2.8 × 2.8 =
  3. 3.6.6 × 0.02 =
  4. 4.0.17 × 1.5 =
  5. 5.0.15 × 1.4 =
  6. 6.0.72 × 3.4 =
  7. 7.0.11 × 3.1 =
  8. 8.0.47 × 0.9 =
  9. 9.1.3 × 0.04 =
  10. 10.0.67 × 2.7 =
  11. 11.0.07 × 0.2 =
  12. 12.1.3 × 0.21 =
  13. 13.8.5 × 0.12 =
  14. 14.5.1 × 0.29 =
  15. 15.0.65 × 1.8 =
  16. 16.1.1 × 0.21 =
  17. 17.0.3 × 0.33 =
  18. 18.0.47 × 0.9 =
  19. 19.0.73 × 3.1 =
  20. 20.9.2 × 1.1 =
  21. 21.0.26 × 3.6 =
  22. 22.4.8 × 0.02 =
  23. 23.2.4 × 0.4 =
  24. 24.0.22 × 2.2 =
  25. 25.4.3 × 3.2 =
  26. 26.0.81 × 1.9 =
  27. 27.0.9 × 0.05 =
  28. 28.6.8 × 3.5 =
  29. 29.0.58 × 2.2 =
  30. 30.0.81 × 0.4 =
  31. 31.5.4 × 0.2 =
  32. 32.9.9 × 0.36 =
  33. 33.0.86 × 2.6 =
  34. 34.0.34 × 2.7 =
  35. 35.0.73 × 0.7 =
  36. 36.0.3 × 0.06 =
  37. 37.0.21 × 0.9 =
  38. 38.0.41 × 1.1 =
  39. 39.0.64 × 1.5 =
  40. 40.0.18 × 1.7 =

Answer key

  1. 0.088
  2. 7.84
  3. 0.132
  4. 0.255
  5. 0.21
  6. 2.448
  7. 0.341
  8. 0.423
  9. 0.052
  10. 1.809
  11. 0.014
  12. 0.273
  13. 1.02
  14. 1.479
  15. 1.17
  16. 0.231
  17. 0.099
  18. 0.423
  19. 2.263
  20. 10.12
  21. 0.936
  22. 0.096
  23. 0.96
  24. 0.484
  25. 13.76
  26. 1.539
  27. 0.045
  28. 23.8
  29. 1.276
  30. 0.324
  31. 1.08
  32. 3.564
  33. 2.236
  34. 0.918
  35. 0.511
  36. 0.018
  37. 0.189
  38. 0.451
  39. 0.96
  40. 0.306

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