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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 313 · 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. 1.6.6 × 0.5 =
  2. 2.1.9 × 2.5 =
  3. 3.0.73 × 1.2 =
  4. 4.0.81 × 2.7 =
  5. 5.7.1 × 0.17 =
  6. 6.0.7 × 0.32 =
  7. 7.0.15 × 2.5 =
  8. 8.0.03 × 3.3 =
  9. 9.9.2 × 1.7 =
  10. 10.0.72 × 2.5 =
  11. 11.9.3 × 0.11 =
  12. 12.6.7 × 0.29 =
  13. 13.0.96 × 2.2 =
  14. 14.0.24 × 2.8 =
  15. 15.0.92 × 3.6 =
  16. 16.0.61 × 2.1 =
  17. 17.0.14 × 1.5 =
  18. 18.2.7 × 0.18 =
  19. 19.0.54 × 0.3 =
  20. 20.4.8 × 0.26 =
  21. 21.0.52 × 1.9 =
  22. 22.2.6 × 0.16 =
  23. 23.4.3 × 3.8 =
  24. 24.3.6 × 0.3 =
  25. 25.1.4 × 0.2 =
  26. 26.5.8 × 0.18 =
  27. 27.0.11 × 1.9 =
  28. 28.9.9 × 0.11 =
  29. 29.7.5 × 0.2 =
  30. 30.1.9 × 0.14 =
  31. 31.0.2 × 0.18 =
  32. 32.4.7 × 0.21 =
  33. 33.0.68 × 1.1 =
  34. 34.0.97 × 2.5 =
  35. 35.6.5 × 0.6 =
  36. 36.0.56 × 1.5 =
  37. 37.0.41 × 0.6 =
  38. 38.8.1 × 3.5 =
  39. 39.4.8 × 0.37 =
  40. 40.5.5 × 0.11 =

Answer key

  1. 3.3
  2. 4.75
  3. 0.876
  4. 2.187
  5. 1.207
  6. 0.224
  7. 0.375
  8. 0.099
  9. 15.64
  10. 1.8
  11. 1.023
  12. 1.943
  13. 2.112
  14. 0.672
  15. 3.312
  16. 1.281
  17. 0.21
  18. 0.486
  19. 0.162
  20. 1.248
  21. 0.988
  22. 0.416
  23. 16.34
  24. 1.08
  25. 0.28
  26. 1.044
  27. 0.209
  28. 1.089
  29. 1.5
  30. 0.266
  31. 0.036
  32. 0.987
  33. 0.748
  34. 2.425
  35. 3.9
  36. 0.84
  37. 0.246
  38. 28.35
  39. 1.776
  40. 0.605

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