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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 19 · 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. 1.4.4 × 0.33 =
  2. 2.0.22 × 1.4 =
  3. 3.5.9 × 0.7 =
  4. 4.0.63 × 3.3 =
  5. 5.4.6 × 0.28 =
  6. 6.4.2 × 0.14 =
  7. 7.4.6 × 0.2 =
  8. 8.0.17 × 0.3 =
  9. 9.0.15 × 0.2 =
  10. 10.0.67 × 2.6 =
  11. 11.9.3 × 0.3 =
  12. 12.0.84 × 0.9 =
  13. 13.2.3 × 0.08 =
  14. 14.6.8 × 0.22 =
  15. 15.3.1 × 0.04 =
  16. 16.0.88 × 1.8 =
  17. 17.2.3 × 0.06 =
  18. 18.0.61 × 0.5 =
  19. 19.8.9 × 3.1 =
  20. 20.8.4 × 0.6 =
  21. 21.6.1 × 0.6 =
  22. 22.0.9 × 0.03 =
  23. 23.2.8 × 0.21 =
  24. 24.0.73 × 1.5 =
  25. 25.0.53 × 2.4 =
  26. 26.1.7 × 0.4 =
  27. 27.6.8 × 3.3 =
  28. 28.1.9 × 0.08 =
  29. 29.0.5 × 0.15 =
  30. 30.0.53 × 3.1 =
  31. 31.2.6 × 1.1 =
  32. 32.0.61 × 2.9 =
  33. 33.0.4 × 1.2 =
  34. 34.0.73 × 0.8 =
  35. 35.2.7 × 0.14 =
  36. 36.0.78 × 2.4 =
  37. 37.0.04 × 0.8 =
  38. 38.7.9 × 1.1 =
  39. 39.7.6 × 2.4 =
  40. 40.0.51 × 3.1 =

Answer key

  1. 1.452
  2. 0.308
  3. 4.13
  4. 2.079
  5. 1.288
  6. 0.588
  7. 0.92
  8. 0.051
  9. 0.03
  10. 1.742
  11. 2.79
  12. 0.756
  13. 0.184
  14. 1.496
  15. 0.124
  16. 1.584
  17. 0.138
  18. 0.305
  19. 27.59
  20. 5.04
  21. 3.66
  22. 0.027
  23. 0.588
  24. 1.095
  25. 1.272
  26. 0.68
  27. 22.44
  28. 0.152
  29. 0.075
  30. 1.643
  31. 2.86
  32. 1.769
  33. 0.48
  34. 0.584
  35. 0.378
  36. 1.872
  37. 0.032
  38. 8.69
  39. 18.24
  40. 1.581

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