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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 738 · 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. 1.6.9 × 1.2 =
  2. 2.0.8 × 0.2 =
  3. 3.0.71 × 1.9 =
  4. 4.0.69 × 3.3 =
  5. 5.0.7 × 0.2 =
  6. 6.6.7 × 3.6 =
  7. 7.6.8 × 1.6 =
  8. 8.5.3 × 1.4 =
  9. 9.4.1 × 0.39 =
  10. 10.8.3 × 0.24 =
  11. 11.1.4 × 1.7 =
  12. 12.2.2 × 3.7 =
  13. 13.7.5 × 1.2 =
  14. 14.9.2 × 0.31 =
  15. 15.2.2 × 0.11 =
  16. 16.0.67 × 3.6 =
  17. 17.2.1 × 2.9 =
  18. 18.0.71 × 1.9 =
  19. 19.0.6 × 0.05 =
  20. 20.0.28 × 0.5 =
  21. 21.6.3 × 1.5 =
  22. 22.0.46 × 3.1 =
  23. 23.4.4 × 3.9 =
  24. 24.9.8 × 2.2 =
  25. 25.0.99 × 2.9 =
  26. 26.0.3 × 0.09 =
  27. 27.6.8 × 2.7 =
  28. 28.8.5 × 2.5 =
  29. 29.9.9 × 2.6 =
  30. 30.1.5 × 0.06 =
  31. 31.0.55 × 3.8 =
  32. 32.0.76 × 2.1 =
  33. 33.4.1 × 1.3 =
  34. 34.0.76 × 2.7 =
  35. 35.0.6 × 0.11 =
  36. 36.1.7 × 0.28 =
  37. 37.0.53 × 2.9 =
  38. 38.1.1 × 0.04 =
  39. 39.8.8 × 0.7 =
  40. 40.0.86 × 3.1 =

Answer key

  1. 8.28
  2. 0.16
  3. 1.349
  4. 2.277
  5. 0.14
  6. 24.12
  7. 10.88
  8. 7.42
  9. 1.599
  10. 1.992
  11. 2.38
  12. 8.14
  13. 9
  14. 2.852
  15. 0.242
  16. 2.412
  17. 6.09
  18. 1.349
  19. 0.03
  20. 0.14
  21. 9.45
  22. 1.426
  23. 17.16
  24. 21.56
  25. 2.871
  26. 0.027
  27. 18.36
  28. 21.25
  29. 25.74
  30. 0.09
  31. 2.09
  32. 1.596
  33. 5.33
  34. 2.052
  35. 0.066
  36. 0.476
  37. 1.537
  38. 0.044
  39. 6.16
  40. 2.666

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