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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 577 · 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. 1.0.28 × 2.5 =
  2. 2.4.3 × 3.9 =
  3. 3.0.29 × 2.8 =
  4. 4.9.8 × 0.34 =
  5. 5.0.49 × 1.5 =
  6. 6.0.98 × 0.4 =
  7. 7.0.04 × 0.7 =
  8. 8.5.1 × 0.21 =
  9. 9.0.26 × 3.1 =
  10. 10.8.5 × 1.2 =
  11. 11.0.79 × 2.3 =
  12. 12.3.8 × 1.1 =
  13. 13.0.78 × 2.9 =
  14. 14.0.57 × 0.6 =
  15. 15.5.7 × 0.04 =
  16. 16.0.94 × 1.9 =
  17. 17.1.3 × 0.15 =
  18. 18.0.62 × 0.8 =
  19. 19.3.9 × 0.08 =
  20. 20.6.8 × 0.23 =
  21. 21.9.4 × 0.18 =
  22. 22.5.4 × 3.1 =
  23. 23.0.34 × 2.3 =
  24. 24.8.1 × 0.23 =
  25. 25.8.2 × 0.5 =
  26. 26.9.6 × 0.03 =
  27. 27.0.09 × 2.9 =
  28. 28.1.2 × 0.27 =
  29. 29.3.4 × 1.4 =
  30. 30.0.84 × 2.2 =
  31. 31.5.6 × 3.4 =
  32. 32.4.4 × 3.3 =
  33. 33.0.76 × 3.8 =
  34. 34.8.1 × 1.2 =
  35. 35.4.7 × 0.03 =
  36. 36.0.3 × 0.6 =
  37. 37.0.36 × 3.7 =
  38. 38.3.5 × 0.38 =
  39. 39.8.7 × 0.4 =
  40. 40.5.8 × 0.36 =

Answer key

  1. 0.7
  2. 16.77
  3. 0.812
  4. 3.332
  5. 0.735
  6. 0.392
  7. 0.028
  8. 1.071
  9. 0.806
  10. 10.2
  11. 1.817
  12. 4.18
  13. 2.262
  14. 0.342
  15. 0.228
  16. 1.786
  17. 0.195
  18. 0.496
  19. 0.312
  20. 1.564
  21. 1.692
  22. 16.74
  23. 0.782
  24. 1.863
  25. 4.1
  26. 0.288
  27. 0.261
  28. 0.324
  29. 4.76
  30. 1.848
  31. 19.04
  32. 14.52
  33. 2.888
  34. 9.72
  35. 0.141
  36. 0.18
  37. 1.332
  38. 1.33
  39. 3.48
  40. 2.088

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