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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 50 · 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. 1.0.05 × 2.1 =
  2. 2.4.9 × 0.5 =
  3. 3.0.91 × 3.7 =
  4. 4.6.1 × 0.26 =
  5. 5.3.3 × 0.23 =
  6. 6.0.92 × 3.1 =
  7. 7.2.1 × 0.35 =
  8. 8.0.02 × 2.6 =
  9. 9.2.2 × 3.3 =
  10. 10.0.24 × 1.2 =
  11. 11.9.4 × 3.1 =
  12. 12.5.9 × 0.39 =
  13. 13.9.3 × 0.09 =
  14. 14.0.36 × 2.9 =
  15. 15.9.4 × 0.04 =
  16. 16.0.14 × 1.4 =
  17. 17.2.5 × 0.38 =
  18. 18.0.81 × 1.8 =
  19. 19.0.44 × 3.8 =
  20. 20.2.1 × 0.8 =
  21. 21.0.96 × 2.4 =
  22. 22.2.9 × 0.25 =
  23. 23.3.7 × 0.27 =
  24. 24.8.1 × 0.4 =
  25. 25.0.02 × 0.8 =
  26. 26.0.07 × 0.7 =
  27. 27.0.3 × 0.5 =
  28. 28.0.97 × 0.7 =
  29. 29.0.12 × 2.8 =
  30. 30.0.17 × 2.1 =
  31. 31.4.1 × 0.02 =
  32. 32.0.35 × 0.4 =
  33. 33.0.71 × 0.6 =
  34. 34.6.4 × 3.4 =
  35. 35.5.8 × 2.9 =
  36. 36.0.2 × 1.1 =
  37. 37.0.64 × 0.3 =
  38. 38.0.66 × 0.4 =
  39. 39.0.4 × 0.36 =
  40. 40.0.93 × 2.3 =

Answer key

  1. 0.105
  2. 2.45
  3. 3.367
  4. 1.586
  5. 0.759
  6. 2.852
  7. 0.735
  8. 0.052
  9. 7.26
  10. 0.288
  11. 29.14
  12. 2.301
  13. 0.837
  14. 1.044
  15. 0.376
  16. 0.196
  17. 0.95
  18. 1.458
  19. 1.672
  20. 1.68
  21. 2.304
  22. 0.725
  23. 0.999
  24. 3.24
  25. 0.016
  26. 0.049
  27. 0.15
  28. 0.679
  29. 0.336
  30. 0.357
  31. 0.082
  32. 0.14
  33. 0.426
  34. 21.76
  35. 16.82
  36. 0.22
  37. 0.192
  38. 0.264
  39. 0.144
  40. 2.139

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