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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 515 · 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. 1.0.96 × 3.4 =
  2. 2.0.69 × 2.2 =
  3. 3.0.65 × 0.3 =
  4. 4.0.44 × 0.6 =
  5. 5.0.77 × 0.2 =
  6. 6.0.17 × 2.1 =
  7. 7.0.13 × 1.2 =
  8. 8.2.1 × 3.5 =
  9. 9.0.29 × 3.1 =
  10. 10.7.1 × 1.4 =
  11. 11.0.57 × 2.2 =
  12. 12.4.4 × 0.9 =
  13. 13.0.25 × 2.1 =
  14. 14.0.74 × 0.5 =
  15. 15.0.96 × 1.5 =
  16. 16.0.68 × 2.2 =
  17. 17.0.13 × 2.1 =
  18. 18.3.2 × 0.15 =
  19. 19.0.5 × 2.8 =
  20. 20.0.13 × 2.7 =
  21. 21.2.2 × 3.3 =
  22. 22.9.1 × 3.1 =
  23. 23.0.36 × 2.8 =
  24. 24.0.76 × 1.8 =
  25. 25.1.8 × 0.5 =
  26. 26.7.7 × 0.22 =
  27. 27.4.5 × 0.14 =
  28. 28.9.4 × 0.31 =
  29. 29.0.09 × 0.3 =
  30. 30.6.3 × 0.36 =
  31. 31.9.7 × 0.15 =
  32. 32.0.38 × 3.1 =
  33. 33.0.02 × 2.7 =
  34. 34.0.32 × 2.1 =
  35. 35.6.2 × 0.19 =
  36. 36.0.25 × 1.9 =
  37. 37.0.04 × 0.8 =
  38. 38.6.4 × 0.19 =
  39. 39.0.28 × 3.2 =
  40. 40.0.11 × 0.7 =

Answer key

  1. 3.264
  2. 1.518
  3. 0.195
  4. 0.264
  5. 0.154
  6. 0.357
  7. 0.156
  8. 7.35
  9. 0.899
  10. 9.94
  11. 1.254
  12. 3.96
  13. 0.525
  14. 0.37
  15. 1.44
  16. 1.496
  17. 0.273
  18. 0.48
  19. 1.4
  20. 0.351
  21. 7.26
  22. 28.21
  23. 1.008
  24. 1.368
  25. 0.9
  26. 1.694
  27. 0.63
  28. 2.914
  29. 0.027
  30. 2.268
  31. 1.455
  32. 1.178
  33. 0.054
  34. 0.672
  35. 1.178
  36. 0.475
  37. 0.032
  38. 1.216
  39. 0.896
  40. 0.077

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