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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 654 · 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. 1.0.21 × 1.4 =
  2. 2.8.9 × 0.9 =
  3. 3.0.9 × 0.15 =
  4. 4.4.1 × 0.19 =
  5. 5.0.06 × 1.2 =
  6. 6.0.72 × 2.1 =
  7. 7.5.3 × 0.27 =
  8. 8.3.9 × 3.4 =
  9. 9.1.8 × 0.8 =
  10. 10.1.1 × 0.34 =
  11. 11.4.1 × 1.1 =
  12. 12.7.4 × 0.31 =
  13. 13.5.3 × 3.1 =
  14. 14.9.3 × 2.3 =
  15. 15.4.2 × 2.1 =
  16. 16.5.1 × 2.1 =
  17. 17.0.5 × 0.5 =
  18. 18.4.5 × 0.6 =
  19. 19.6.7 × 1.7 =
  20. 20.0.83 × 1.1 =
  21. 21.7.9 × 0.16 =
  22. 22.0.21 × 2.5 =
  23. 23.8.2 × 1.1 =
  24. 24.3.8 × 1.6 =
  25. 25.0.67 × 0.5 =
  26. 26.4.3 × 3.3 =
  27. 27.4.1 × 3.9 =
  28. 28.0.49 × 1.1 =
  29. 29.8.9 × 3.5 =
  30. 30.0.47 × 0.7 =
  31. 31.0.18 × 2.8 =
  32. 32.3.8 × 0.33 =
  33. 33.0.88 × 2.8 =
  34. 34.0.43 × 3.2 =
  35. 35.6.8 × 0.06 =
  36. 36.0.62 × 2.5 =
  37. 37.3.4 × 2.1 =
  38. 38.0.36 × 0.3 =
  39. 39.0.13 × 0.7 =
  40. 40.7.3 × 0.06 =

Answer key

  1. 0.294
  2. 8.01
  3. 0.135
  4. 0.779
  5. 0.072
  6. 1.512
  7. 1.431
  8. 13.26
  9. 1.44
  10. 0.374
  11. 4.51
  12. 2.294
  13. 16.43
  14. 21.39
  15. 8.82
  16. 10.71
  17. 0.25
  18. 2.7
  19. 11.39
  20. 0.913
  21. 1.264
  22. 0.525
  23. 9.02
  24. 6.08
  25. 0.335
  26. 14.19
  27. 15.99
  28. 0.539
  29. 31.15
  30. 0.329
  31. 0.504
  32. 1.254
  33. 2.464
  34. 1.376
  35. 0.408
  36. 1.55
  37. 7.14
  38. 0.108
  39. 0.091
  40. 0.438

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