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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 107 · 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. 1.0.94 × 3.1 =
  2. 2.0.96 × 0.9 =
  3. 3.0.14 × 3.4 =
  4. 4.0.9 × 3.9 =
  5. 5.0.03 × 0.2 =
  6. 6.7.6 × 0.08 =
  7. 7.0.3 × 0.11 =
  8. 8.4.2 × 2.1 =
  9. 9.2.5 × 0.26 =
  10. 10.1.7 × 0.09 =
  11. 11.5.1 × 0.23 =
  12. 12.0.31 × 1.3 =
  13. 13.7.1 × 1.9 =
  14. 14.0.72 × 0.9 =
  15. 15.1.1 × 0.35 =
  16. 16.0.41 × 1.4 =
  17. 17.0.89 × 2.2 =
  18. 18.0.93 × 3.4 =
  19. 19.0.9 × 3.5 =
  20. 20.0.24 × 0.8 =
  21. 21.8.5 × 0.4 =
  22. 22.0.18 × 0.5 =
  23. 23.0.52 × 0.3 =
  24. 24.4.5 × 0.34 =
  25. 25.0.27 × 2.9 =
  26. 26.1.4 × 0.9 =
  27. 27.0.61 × 0.4 =
  28. 28.0.46 × 0.6 =
  29. 29.5.9 × 0.2 =
  30. 30.5.1 × 0.11 =
  31. 31.2.4 × 0.32 =
  32. 32.0.39 × 2.3 =
  33. 33.0.59 × 2.1 =
  34. 34.5.4 × 0.11 =
  35. 35.0.06 × 1.1 =
  36. 36.0.88 × 3.2 =
  37. 37.2.4 × 0.11 =
  38. 38.6.5 × 0.33 =
  39. 39.3.3 × 0.31 =
  40. 40.0.56 × 0.3 =

Answer key

  1. 2.914
  2. 0.864
  3. 0.476
  4. 3.51
  5. 0.006
  6. 0.608
  7. 0.033
  8. 8.82
  9. 0.65
  10. 0.153
  11. 1.173
  12. 0.403
  13. 13.49
  14. 0.648
  15. 0.385
  16. 0.574
  17. 1.958
  18. 3.162
  19. 3.15
  20. 0.192
  21. 3.4
  22. 0.09
  23. 0.156
  24. 1.53
  25. 0.783
  26. 1.26
  27. 0.244
  28. 0.276
  29. 1.18
  30. 0.561
  31. 0.768
  32. 0.897
  33. 1.239
  34. 0.594
  35. 0.066
  36. 2.816
  37. 0.264
  38. 2.145
  39. 1.023
  40. 0.168

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