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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 168 · 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. 1.1.7 × 0.11 =
  2. 2.0.21 × 0.3 =
  3. 3.4.4 × 2.1 =
  4. 4.9.7 × 1.8 =
  5. 5.0.16 × 1.9 =
  6. 6.8.1 × 2.7 =
  7. 7.5.5 × 0.02 =
  8. 8.0.26 × 0.5 =
  9. 9.0.84 × 3.2 =
  10. 10.0.58 × 1.8 =
  11. 11.3.6 × 0.7 =
  12. 12.4.8 × 3.7 =
  13. 13.0.3 × 2.6 =
  14. 14.0.2 × 2.6 =
  15. 15.8.9 × 1.3 =
  16. 16.4.1 × 1.1 =
  17. 17.9.1 × 0.31 =
  18. 18.0.82 × 1.8 =
  19. 19.8.1 × 1.9 =
  20. 20.0.9 × 0.27 =
  21. 21.0.51 × 2.5 =
  22. 22.0.15 × 1.7 =
  23. 23.0.9 × 0.22 =
  24. 24.2.5 × 3.2 =
  25. 25.0.88 × 1.4 =
  26. 26.0.79 × 2.4 =
  27. 27.0.79 × 0.3 =
  28. 28.8.5 × 0.39 =
  29. 29.0.13 × 0.7 =
  30. 30.3.8 × 0.06 =
  31. 31.0.75 × 2.5 =
  32. 32.4.5 × 0.35 =
  33. 33.4.8 × 2.9 =
  34. 34.0.98 × 1.3 =
  35. 35.3.7 × 1.7 =
  36. 36.1.3 × 0.31 =
  37. 37.0.32 × 2.5 =
  38. 38.8.2 × 1.1 =
  39. 39.9.4 × 0.05 =
  40. 40.0.28 × 0.5 =

Answer key

  1. 0.187
  2. 0.063
  3. 9.24
  4. 17.46
  5. 0.304
  6. 21.87
  7. 0.11
  8. 0.13
  9. 2.688
  10. 1.044
  11. 2.52
  12. 17.76
  13. 0.78
  14. 0.52
  15. 11.57
  16. 4.51
  17. 2.821
  18. 1.476
  19. 15.39
  20. 0.243
  21. 1.275
  22. 0.255
  23. 0.198
  24. 8
  25. 1.232
  26. 1.896
  27. 0.237
  28. 3.315
  29. 0.091
  30. 0.228
  31. 1.875
  32. 1.575
  33. 13.92
  34. 1.274
  35. 6.29
  36. 0.403
  37. 0.8
  38. 9.02
  39. 0.47
  40. 0.14

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