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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 68 · 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. 1.0.8 × 3.1 =
  2. 2.5.6 × 0.29 =
  3. 3.6.7 × 0.3 =
  4. 4.3.5 × 0.09 =
  5. 5.1.1 × 3.2 =
  6. 6.0.31 × 1.8 =
  7. 7.2.8 × 2.9 =
  8. 8.0.49 × 0.9 =
  9. 9.4.3 × 3.4 =
  10. 10.0.5 × 1.4 =
  11. 11.0.46 × 1.2 =
  12. 12.7.6 × 0.2 =
  13. 13.0.56 × 1.7 =
  14. 14.4.5 × 3.6 =
  15. 15.7.8 × 0.31 =
  16. 16.6.9 × 0.38 =
  17. 17.5.7 × 0.8 =
  18. 18.9.3 × 0.34 =
  19. 19.4.9 × 3.3 =
  20. 20.1.7 × 0.27 =
  21. 21.0.58 × 0.8 =
  22. 22.2.7 × 0.11 =
  23. 23.0.02 × 1.2 =
  24. 24.0.37 × 0.2 =
  25. 25.2.2 × 0.38 =
  26. 26.0.62 × 3.9 =
  27. 27.9.1 × 0.3 =
  28. 28.0.52 × 3.1 =
  29. 29.0.72 × 2.9 =
  30. 30.0.04 × 2.1 =
  31. 31.8.5 × 0.37 =
  32. 32.7.1 × 0.08 =
  33. 33.0.5 × 1.5 =
  34. 34.6.4 × 2.8 =
  35. 35.4.1 × 3.4 =
  36. 36.2.8 × 0.21 =
  37. 37.4.1 × 1.8 =
  38. 38.8.1 × 0.14 =
  39. 39.2.6 × 0.17 =
  40. 40.9.1 × 0.12 =

Answer key

  1. 2.48
  2. 1.624
  3. 2.01
  4. 0.315
  5. 3.52
  6. 0.558
  7. 8.12
  8. 0.441
  9. 14.62
  10. 0.7
  11. 0.552
  12. 1.52
  13. 0.952
  14. 16.2
  15. 2.418
  16. 2.622
  17. 4.56
  18. 3.162
  19. 16.17
  20. 0.459
  21. 0.464
  22. 0.297
  23. 0.024
  24. 0.074
  25. 0.836
  26. 2.418
  27. 2.73
  28. 1.612
  29. 2.088
  30. 0.084
  31. 3.145
  32. 0.568
  33. 0.75
  34. 17.92
  35. 13.94
  36. 0.588
  37. 7.38
  38. 1.134
  39. 0.442
  40. 1.092

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