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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 755 · 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. 1.0.74 × 1.3 =
  2. 2.0.75 × 2.8 =
  3. 3.6.2 × 0.05 =
  4. 4.0.5 × 1.9 =
  5. 5.7.4 × 3.1 =
  6. 6.0.53 × 0.4 =
  7. 7.0.72 × 2.5 =
  8. 8.8.2 × 3.2 =
  9. 9.0.09 × 1.2 =
  10. 10.0.05 × 3.3 =
  11. 11.0.54 × 3.2 =
  12. 12.6.1 × 0.39 =
  13. 13.0.94 × 2.7 =
  14. 14.2.8 × 2.1 =
  15. 15.0.53 × 1.9 =
  16. 16.8.1 × 0.29 =
  17. 17.0.56 × 2.9 =
  18. 18.0.49 × 2.3 =
  19. 19.4.6 × 0.05 =
  20. 20.8.8 × 3.4 =
  21. 21.3.5 × 0.05 =
  22. 22.0.51 × 2.7 =
  23. 23.3.5 × 0.33 =
  24. 24.9.3 × 0.07 =
  25. 25.3.9 × 3.1 =
  26. 26.0.13 × 1.2 =
  27. 27.0.88 × 1.9 =
  28. 28.0.88 × 2.9 =
  29. 29.3.4 × 0.09 =
  30. 30.0.84 × 0.9 =
  31. 31.0.4 × 3.9 =
  32. 32.7.9 × 3.4 =
  33. 33.3.2 × 2.8 =
  34. 34.0.68 × 0.8 =
  35. 35.0.91 × 3.2 =
  36. 36.0.38 × 0.2 =
  37. 37.1.4 × 0.12 =
  38. 38.8.6 × 0.6 =
  39. 39.0.21 × 3.7 =
  40. 40.3.1 × 2.1 =

Answer key

  1. 0.962
  2. 2.1
  3. 0.31
  4. 0.95
  5. 22.94
  6. 0.212
  7. 1.8
  8. 26.24
  9. 0.108
  10. 0.165
  11. 1.728
  12. 2.379
  13. 2.538
  14. 5.88
  15. 1.007
  16. 2.349
  17. 1.624
  18. 1.127
  19. 0.23
  20. 29.92
  21. 0.175
  22. 1.377
  23. 1.155
  24. 0.651
  25. 12.09
  26. 0.156
  27. 1.672
  28. 2.552
  29. 0.306
  30. 0.756
  31. 1.56
  32. 26.86
  33. 8.96
  34. 0.544
  35. 2.912
  36. 0.076
  37. 0.168
  38. 5.16
  39. 0.777
  40. 6.51

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