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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 238 · 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. 1.3.1 × 0.11 =
  2. 2.0.21 × 0.2 =
  3. 3.7.6 × 0.04 =
  4. 4.0.4 × 0.11 =
  5. 5.0.31 × 0.3 =
  6. 6.9.3 × 0.09 =
  7. 7.2.9 × 0.2 =
  8. 8.3.9 × 0.27 =
  9. 9.0.45 × 1.4 =
  10. 10.6.5 × 1.3 =
  11. 11.0.21 × 2.5 =
  12. 12.1.6 × 0.36 =
  13. 13.9.9 × 0.37 =
  14. 14.0.46 × 3.6 =
  15. 15.0.59 × 2.5 =
  16. 16.0.13 × 3.3 =
  17. 17.0.09 × 3.1 =
  18. 18.7.5 × 1.2 =
  19. 19.2.1 × 0.29 =
  20. 20.0.45 × 1.3 =
  21. 21.3.6 × 3.6 =
  22. 22.0.63 × 2.4 =
  23. 23.6.6 × 1.4 =
  24. 24.8.4 × 1.5 =
  25. 25.7.4 × 0.38 =
  26. 26.3.1 × 1.3 =
  27. 27.0.52 × 0.4 =
  28. 28.4.9 × 1.6 =
  29. 29.8.5 × 0.3 =
  30. 30.0.79 × 2.6 =
  31. 31.0.8 × 0.35 =
  32. 32.0.36 × 2.5 =
  33. 33.1.6 × 2.6 =
  34. 34.0.6 × 0.29 =
  35. 35.0.58 × 2.2 =
  36. 36.0.47 × 2.5 =
  37. 37.0.97 × 2.2 =
  38. 38.0.5 × 0.8 =
  39. 39.0.14 × 0.3 =
  40. 40.0.12 × 3.1 =

Answer key

  1. 0.341
  2. 0.042
  3. 0.304
  4. 0.044
  5. 0.093
  6. 0.837
  7. 0.58
  8. 1.053
  9. 0.63
  10. 8.45
  11. 0.525
  12. 0.576
  13. 3.663
  14. 1.656
  15. 1.475
  16. 0.429
  17. 0.279
  18. 9
  19. 0.609
  20. 0.585
  21. 12.96
  22. 1.512
  23. 9.24
  24. 12.6
  25. 2.812
  26. 4.03
  27. 0.208
  28. 7.84
  29. 2.55
  30. 2.054
  31. 0.28
  32. 0.9
  33. 4.16
  34. 0.174
  35. 1.276
  36. 1.175
  37. 2.134
  38. 0.4
  39. 0.042
  40. 0.372

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