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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 243 · 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. 1.7.2 × 0.19 =
  2. 2.3.6 × 0.11 =
  3. 3.8.3 × 0.11 =
  4. 4.0.86 × 0.2 =
  5. 5.4.8 × 1.7 =
  6. 6.0.33 × 0.8 =
  7. 7.5.6 × 0.28 =
  8. 8.0.94 × 1.3 =
  9. 9.0.08 × 1.1 =
  10. 10.0.51 × 3.4 =
  11. 11.8.6 × 0.09 =
  12. 12.1.3 × 2.6 =
  13. 13.0.89 × 1.1 =
  14. 14.0.28 × 3.7 =
  15. 15.4.6 × 0.11 =
  16. 16.0.13 × 3.3 =
  17. 17.0.71 × 1.9 =
  18. 18.0.89 × 0.8 =
  19. 19.0.18 × 3.4 =
  20. 20.0.41 × 2.9 =
  21. 21.8.6 × 0.25 =
  22. 22.0.57 × 1.4 =
  23. 23.4.6 × 0.31 =
  24. 24.0.81 × 2.8 =
  25. 25.7.9 × 2.5 =
  26. 26.1.7 × 1.6 =
  27. 27.1.4 × 0.38 =
  28. 28.0.02 × 3.2 =
  29. 29.5.3 × 1.2 =
  30. 30.0.96 × 3.8 =
  31. 31.5.6 × 2.9 =
  32. 32.6.4 × 0.04 =
  33. 33.0.38 × 0.5 =
  34. 34.9.1 × 0.21 =
  35. 35.5.6 × 3.6 =
  36. 36.0.24 × 3.8 =
  37. 37.6.6 × 2.5 =
  38. 38.8.6 × 1.1 =
  39. 39.9.2 × 1.8 =
  40. 40.0.07 × 0.6 =

Answer key

  1. 1.368
  2. 0.396
  3. 0.913
  4. 0.172
  5. 8.16
  6. 0.264
  7. 1.568
  8. 1.222
  9. 0.088
  10. 1.734
  11. 0.774
  12. 3.38
  13. 0.979
  14. 1.036
  15. 0.506
  16. 0.429
  17. 1.349
  18. 0.712
  19. 0.612
  20. 1.189
  21. 2.15
  22. 0.798
  23. 1.426
  24. 2.268
  25. 19.75
  26. 2.72
  27. 0.532
  28. 0.064
  29. 6.36
  30. 3.648
  31. 16.24
  32. 0.256
  33. 0.19
  34. 1.911
  35. 20.16
  36. 0.912
  37. 16.5
  38. 9.46
  39. 16.56
  40. 0.042

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