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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 144 · 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. 1.5.9 × 2.9 =
  2. 2.0.72 × 2.9 =
  3. 3.0.57 × 0.6 =
  4. 4.4.4 × 0.34 =
  5. 5.3.8 × 1.6 =
  6. 6.0.21 × 0.9 =
  7. 7.0.02 × 0.9 =
  8. 8.8.4 × 0.27 =
  9. 9.8.4 × 2.9 =
  10. 10.0.39 × 3.7 =
  11. 11.0.24 × 1.3 =
  12. 12.7.2 × 1.2 =
  13. 13.0.04 × 3.1 =
  14. 14.0.94 × 2.7 =
  15. 15.8.9 × 0.26 =
  16. 16.0.16 × 3.1 =
  17. 17.0.58 × 2.8 =
  18. 18.6.8 × 1.4 =
  19. 19.0.04 × 0.2 =
  20. 20.0.2 × 1.5 =
  21. 21.0.22 × 1.2 =
  22. 22.0.74 × 0.2 =
  23. 23.6.1 × 0.11 =
  24. 24.0.47 × 3.8 =
  25. 25.9.9 × 2.3 =
  26. 26.0.82 × 3.4 =
  27. 27.0.59 × 0.6 =
  28. 28.6.1 × 0.39 =
  29. 29.8.6 × 0.32 =
  30. 30.9.8 × 2.6 =
  31. 31.2.1 × 3.6 =
  32. 32.7.6 × 0.11 =
  33. 33.6.3 × 2.4 =
  34. 34.9.8 × 3.5 =
  35. 35.8.9 × 0.36 =
  36. 36.2.8 × 0.36 =
  37. 37.0.07 × 2.2 =
  38. 38.9.1 × 0.37 =
  39. 39.0.94 × 2.9 =
  40. 40.0.51 × 2.5 =

Answer key

  1. 17.11
  2. 2.088
  3. 0.342
  4. 1.496
  5. 6.08
  6. 0.189
  7. 0.018
  8. 2.268
  9. 24.36
  10. 1.443
  11. 0.312
  12. 8.64
  13. 0.124
  14. 2.538
  15. 2.314
  16. 0.496
  17. 1.624
  18. 9.52
  19. 0.008
  20. 0.3
  21. 0.264
  22. 0.148
  23. 0.671
  24. 1.786
  25. 22.77
  26. 2.788
  27. 0.354
  28. 2.379
  29. 2.752
  30. 25.48
  31. 7.56
  32. 0.836
  33. 15.12
  34. 34.3
  35. 3.204
  36. 1.008
  37. 0.154
  38. 3.367
  39. 2.726
  40. 1.275

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