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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 190 · 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. 1.2.4 × 0.04 =
  2. 2.8.3 × 0.39 =
  3. 3.0.53 × 0.6 =
  4. 4.9.4 × 0.7 =
  5. 5.0.26 × 3.1 =
  6. 6.0.82 × 2.6 =
  7. 7.0.84 × 1.1 =
  8. 8.1.2 × 0.23 =
  9. 9.0.51 × 3.1 =
  10. 10.0.68 × 0.3 =
  11. 11.0.4 × 0.4 =
  12. 12.0.24 × 1.1 =
  13. 13.3.1 × 0.34 =
  14. 14.0.14 × 0.8 =
  15. 15.0.7 × 3.4 =
  16. 16.0.33 × 0.6 =
  17. 17.0.39 × 1.1 =
  18. 18.0.58 × 1.6 =
  19. 19.4.8 × 1.1 =
  20. 20.4.5 × 0.12 =
  21. 21.6.9 × 0.11 =
  22. 22.6.8 × 0.27 =
  23. 23.2.4 × 0.2 =
  24. 24.5.8 × 3.1 =
  25. 25.0.05 × 3.8 =
  26. 26.0.7 × 0.31 =
  27. 27.3.3 × 0.9 =
  28. 28.0.71 × 2.2 =
  29. 29.6.6 × 2.1 =
  30. 30.3.1 × 0.31 =
  31. 31.1.8 × 1.1 =
  32. 32.6.1 × 3.4 =
  33. 33.2.5 × 1.1 =
  34. 34.0.29 × 0.5 =
  35. 35.0.73 × 0.5 =
  36. 36.0.2 × 0.16 =
  37. 37.1.5 × 2.4 =
  38. 38.0.63 × 2.1 =
  39. 39.8.8 × 0.14 =
  40. 40.0.06 × 2.5 =

Answer key

  1. 0.096
  2. 3.237
  3. 0.318
  4. 6.58
  5. 0.806
  6. 2.132
  7. 0.924
  8. 0.276
  9. 1.581
  10. 0.204
  11. 0.16
  12. 0.264
  13. 1.054
  14. 0.112
  15. 2.38
  16. 0.198
  17. 0.429
  18. 0.928
  19. 5.28
  20. 0.54
  21. 0.759
  22. 1.836
  23. 0.48
  24. 17.98
  25. 0.19
  26. 0.217
  27. 2.97
  28. 1.562
  29. 13.86
  30. 0.961
  31. 1.98
  32. 20.74
  33. 2.75
  34. 0.145
  35. 0.365
  36. 0.032
  37. 3.6
  38. 1.323
  39. 1.232
  40. 0.15

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