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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 268 · 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. 1.5.1 × 0.03 =
  2. 2.6.3 × 0.34 =
  3. 3.0.19 × 1.1 =
  4. 4.0.99 × 2.8 =
  5. 5.0.48 × 1.8 =
  6. 6.8.5 × 3.7 =
  7. 7.0.47 × 2.1 =
  8. 8.1.8 × 1.9 =
  9. 9.2.9 × 0.2 =
  10. 10.0.14 × 3.2 =
  11. 11.0.61 × 2.1 =
  12. 12.0.91 × 3.6 =
  13. 13.0.7 × 0.21 =
  14. 14.0.9 × 1.2 =
  15. 15.2.8 × 0.11 =
  16. 16.0.36 × 3.4 =
  17. 17.0.92 × 3.1 =
  18. 18.2.3 × 0.16 =
  19. 19.0.51 × 1.4 =
  20. 20.0.22 × 0.2 =
  21. 21.0.84 × 2.6 =
  22. 22.0.38 × 2.1 =
  23. 23.9.1 × 2.3 =
  24. 24.0.86 × 3.3 =
  25. 25.0.07 × 0.3 =
  26. 26.0.58 × 1.5 =
  27. 27.0.14 × 2.1 =
  28. 28.0.24 × 1.6 =
  29. 29.0.38 × 3.2 =
  30. 30.5.8 × 0.5 =
  31. 31.2.4 × 2.8 =
  32. 32.9.9 × 1.6 =
  33. 33.0.27 × 3.9 =
  34. 34.5.1 × 0.38 =
  35. 35.6.8 × 3.5 =
  36. 36.5.9 × 2.4 =
  37. 37.9.1 × 0.2 =
  38. 38.0.6 × 0.9 =
  39. 39.4.1 × 0.16 =
  40. 40.0.3 × 0.37 =

Answer key

  1. 0.153
  2. 2.142
  3. 0.209
  4. 2.772
  5. 0.864
  6. 31.45
  7. 0.987
  8. 3.42
  9. 0.58
  10. 0.448
  11. 1.281
  12. 3.276
  13. 0.147
  14. 1.08
  15. 0.308
  16. 1.224
  17. 2.852
  18. 0.368
  19. 0.714
  20. 0.044
  21. 2.184
  22. 0.798
  23. 20.93
  24. 2.838
  25. 0.021
  26. 0.87
  27. 0.294
  28. 0.384
  29. 1.216
  30. 2.9
  31. 6.72
  32. 15.84
  33. 1.053
  34. 1.938
  35. 23.8
  36. 14.16
  37. 1.82
  38. 0.54
  39. 0.656
  40. 0.111

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