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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 712 · 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. 1.0.9 × 0.06 =
  2. 2.0.97 × 0.8 =
  3. 3.3.9 × 0.06 =
  4. 4.0.32 × 3.4 =
  5. 5.3.3 × 3.7 =
  6. 6.0.86 × 2.5 =
  7. 7.9.4 × 0.04 =
  8. 8.4.4 × 2.1 =
  9. 9.0.3 × 2.1 =
  10. 10.4.5 × 0.27 =
  11. 11.6.7 × 0.04 =
  12. 12.0.47 × 0.6 =
  13. 13.8.4 × 1.2 =
  14. 14.0.47 × 1.8 =
  15. 15.2.4 × 1.6 =
  16. 16.0.87 × 3.7 =
  17. 17.0.37 × 2.1 =
  18. 18.0.88 × 0.2 =
  19. 19.1.8 × 0.28 =
  20. 20.0.06 × 3.9 =
  21. 21.0.49 × 0.9 =
  22. 22.0.66 × 1.9 =
  23. 23.0.84 × 0.7 =
  24. 24.0.18 × 2.1 =
  25. 25.7.1 × 0.11 =
  26. 26.1.1 × 3.9 =
  27. 27.0.16 × 0.3 =
  28. 28.4.5 × 2.8 =
  29. 29.5.6 × 1.1 =
  30. 30.0.75 × 2.9 =
  31. 31.0.19 × 2.9 =
  32. 32.4.2 × 0.6 =
  33. 33.2.2 × 0.16 =
  34. 34.4.3 × 3.4 =
  35. 35.2.3 × 0.12 =
  36. 36.1.1 × 0.21 =
  37. 37.0.2 × 0.27 =
  38. 38.0.37 × 0.8 =
  39. 39.0.03 × 0.8 =
  40. 40.0.62 × 3.7 =

Answer key

  1. 0.054
  2. 0.776
  3. 0.234
  4. 1.088
  5. 12.21
  6. 2.15
  7. 0.376
  8. 9.24
  9. 0.63
  10. 1.215
  11. 0.268
  12. 0.282
  13. 10.08
  14. 0.846
  15. 3.84
  16. 3.219
  17. 0.777
  18. 0.176
  19. 0.504
  20. 0.234
  21. 0.441
  22. 1.254
  23. 0.588
  24. 0.378
  25. 0.781
  26. 4.29
  27. 0.048
  28. 12.6
  29. 6.16
  30. 2.175
  31. 0.551
  32. 2.52
  33. 0.352
  34. 14.62
  35. 0.276
  36. 0.231
  37. 0.054
  38. 0.296
  39. 0.024
  40. 2.294

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