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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 385 · 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. 1.0.6 × 3.1 =
  2. 2.9.4 × 0.16 =
  3. 3.1.6 × 0.9 =
  4. 4.7.1 × 0.34 =
  5. 5.4.1 × 0.4 =
  6. 6.4.7 × 0.22 =
  7. 7.2.3 × 0.34 =
  8. 8.0.2 × 0.37 =
  9. 9.7.5 × 2.3 =
  10. 10.0.25 × 2.3 =
  11. 11.0.71 × 0.7 =
  12. 12.0.19 × 1.1 =
  13. 13.0.29 × 1.5 =
  14. 14.1.8 × 2.7 =
  15. 15.0.94 × 2.3 =
  16. 16.0.88 × 2.8 =
  17. 17.0.08 × 1.8 =
  18. 18.8.5 × 0.03 =
  19. 19.0.45 × 2.9 =
  20. 20.5.1 × 1.1 =
  21. 21.8.1 × 0.09 =
  22. 22.0.97 × 0.4 =
  23. 23.1.9 × 0.4 =
  24. 24.0.91 × 3.3 =
  25. 25.0.31 × 1.1 =
  26. 26.0.03 × 0.9 =
  27. 27.0.7 × 3.9 =
  28. 28.0.41 × 3.9 =
  29. 29.0.51 × 2.3 =
  30. 30.4.1 × 0.24 =
  31. 31.1.1 × 0.21 =
  32. 32.1.6 × 2.9 =
  33. 33.8.2 × 1.1 =
  34. 34.3.4 × 0.11 =
  35. 35.0.15 × 2.1 =
  36. 36.0.05 × 1.4 =
  37. 37.1.1 × 0.02 =
  38. 38.0.42 × 2.2 =
  39. 39.0.78 × 2.5 =
  40. 40.0.07 × 2.8 =

Answer key

  1. 1.86
  2. 1.504
  3. 1.44
  4. 2.414
  5. 1.64
  6. 1.034
  7. 0.782
  8. 0.074
  9. 17.25
  10. 0.575
  11. 0.497
  12. 0.209
  13. 0.435
  14. 4.86
  15. 2.162
  16. 2.464
  17. 0.144
  18. 0.255
  19. 1.305
  20. 5.61
  21. 0.729
  22. 0.388
  23. 0.76
  24. 3.003
  25. 0.341
  26. 0.027
  27. 2.73
  28. 1.599
  29. 1.173
  30. 0.984
  31. 0.231
  32. 4.64
  33. 9.02
  34. 0.374
  35. 0.315
  36. 0.07
  37. 0.022
  38. 0.924
  39. 1.95
  40. 0.196

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