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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 310 · 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. 1.6.7 × 0.35 =
  2. 2.1.1 × 0.3 =
  3. 3.1.2 × 3.4 =
  4. 4.0.23 × 0.6 =
  5. 5.2.9 × 0.7 =
  6. 6.0.57 × 1.8 =
  7. 7.2.2 × 0.13 =
  8. 8.0.11 × 3.1 =
  9. 9.9.9 × 0.15 =
  10. 10.2.9 × 0.06 =
  11. 11.1.4 × 0.12 =
  12. 12.9.6 × 1.9 =
  13. 13.4.9 × 0.21 =
  14. 14.2.6 × 0.31 =
  15. 15.3.1 × 0.5 =
  16. 16.3.2 × 0.5 =
  17. 17.8.3 × 1.8 =
  18. 18.6.6 × 0.27 =
  19. 19.5.5 × 1.8 =
  20. 20.0.69 × 2.9 =
  21. 21.0.78 × 2.8 =
  22. 22.7.5 × 1.4 =
  23. 23.0.16 × 0.6 =
  24. 24.2.9 × 0.34 =
  25. 25.6.5 × 0.19 =
  26. 26.0.8 × 0.2 =
  27. 27.1.4 × 0.36 =
  28. 28.5.5 × 2.9 =
  29. 29.0.89 × 0.5 =
  30. 30.8.7 × 2.9 =
  31. 31.7.6 × 0.11 =
  32. 32.6.1 × 0.9 =
  33. 33.5.7 × 0.34 =
  34. 34.1.9 × 1.7 =
  35. 35.0.93 × 2.8 =
  36. 36.0.98 × 2.2 =
  37. 37.3.9 × 1.3 =
  38. 38.7.5 × 0.16 =
  39. 39.8.1 × 0.07 =
  40. 40.0.32 × 2.7 =

Answer key

  1. 2.345
  2. 0.33
  3. 4.08
  4. 0.138
  5. 2.03
  6. 1.026
  7. 0.286
  8. 0.341
  9. 1.485
  10. 0.174
  11. 0.168
  12. 18.24
  13. 1.029
  14. 0.806
  15. 1.55
  16. 1.6
  17. 14.94
  18. 1.782
  19. 9.9
  20. 2.001
  21. 2.184
  22. 10.5
  23. 0.096
  24. 0.986
  25. 1.235
  26. 0.16
  27. 0.504
  28. 15.95
  29. 0.445
  30. 25.23
  31. 0.836
  32. 5.49
  33. 1.938
  34. 3.23
  35. 2.604
  36. 2.156
  37. 5.07
  38. 1.2
  39. 0.567
  40. 0.864

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