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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 748 · 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. 1.0.57 × 1.5 =
  2. 2.7.1 × 2.4 =
  3. 3.9.3 × 0.12 =
  4. 4.0.94 × 2.3 =
  5. 5.0.49 × 0.2 =
  6. 6.0.14 × 1.4 =
  7. 7.4.1 × 1.1 =
  8. 8.0.23 × 0.5 =
  9. 9.0.74 × 1.8 =
  10. 10.0.85 × 1.3 =
  11. 11.0.53 × 2.7 =
  12. 12.7.2 × 0.19 =
  13. 13.0.23 × 0.4 =
  14. 14.0.2 × 2.7 =
  15. 15.7.7 × 0.21 =
  16. 16.0.58 × 3.7 =
  17. 17.0.54 × 1.1 =
  18. 18.0.29 × 2.1 =
  19. 19.0.43 × 2.1 =
  20. 20.0.84 × 1.7 =
  21. 21.7.8 × 0.13 =
  22. 22.8.4 × 2.5 =
  23. 23.5.8 × 2.9 =
  24. 24.6.4 × 0.04 =
  25. 25.6.8 × 0.36 =
  26. 26.0.91 × 1.1 =
  27. 27.0.26 × 1.7 =
  28. 28.3.5 × 0.08 =
  29. 29.1.3 × 2.6 =
  30. 30.1.8 × 0.35 =
  31. 31.4.9 × 1.7 =
  32. 32.0.28 × 3.7 =
  33. 33.6.1 × 0.03 =
  34. 34.2.9 × 2.4 =
  35. 35.1.9 × 0.14 =
  36. 36.0.03 × 0.9 =
  37. 37.9.1 × 2.9 =
  38. 38.5.9 × 3.8 =
  39. 39.2.4 × 1.6 =
  40. 40.7.9 × 0.7 =

Answer key

  1. 0.855
  2. 17.04
  3. 1.116
  4. 2.162
  5. 0.098
  6. 0.196
  7. 4.51
  8. 0.115
  9. 1.332
  10. 1.105
  11. 1.431
  12. 1.368
  13. 0.092
  14. 0.54
  15. 1.617
  16. 2.146
  17. 0.594
  18. 0.609
  19. 0.903
  20. 1.428
  21. 1.014
  22. 21
  23. 16.82
  24. 0.256
  25. 2.448
  26. 1.001
  27. 0.442
  28. 0.28
  29. 3.38
  30. 0.63
  31. 8.33
  32. 1.036
  33. 0.183
  34. 6.96
  35. 0.266
  36. 0.027
  37. 26.39
  38. 22.42
  39. 3.84
  40. 5.53

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