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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 278 · 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. 1.0.19 × 1.4 =
  2. 2.9.1 × 3.2 =
  3. 3.0.06 × 0.9 =
  4. 4.0.14 × 1.2 =
  5. 5.9.4 × 0.02 =
  6. 6.0.3 × 0.15 =
  7. 7.5.1 × 1.6 =
  8. 8.0.63 × 3.5 =
  9. 9.0.8 × 3.5 =
  10. 10.6.8 × 0.11 =
  11. 11.6.3 × 0.31 =
  12. 12.0.31 × 2.9 =
  13. 13.5.5 × 0.17 =
  14. 14.9.3 × 1.8 =
  15. 15.0.3 × 1.4 =
  16. 16.6.8 × 0.7 =
  17. 17.0.99 × 1.3 =
  18. 18.9.1 × 3.1 =
  19. 19.0.66 × 3.8 =
  20. 20.9.6 × 0.38 =
  21. 21.0.44 × 3.7 =
  22. 22.6.2 × 0.07 =
  23. 23.0.92 × 1.8 =
  24. 24.1.7 × 0.03 =
  25. 25.0.43 × 1.2 =
  26. 26.0.42 × 2.2 =
  27. 27.2.8 × 0.35 =
  28. 28.0.09 × 0.7 =
  29. 29.0.51 × 2.5 =
  30. 30.2.3 × 3.2 =
  31. 31.0.64 × 2.3 =
  32. 32.0.6 × 3.3 =
  33. 33.0.61 × 1.4 =
  34. 34.0.35 × 0.4 =
  35. 35.8.2 × 0.21 =
  36. 36.0.72 × 3.2 =
  37. 37.2.7 × 0.06 =
  38. 38.0.31 × 2.3 =
  39. 39.8.4 × 3.7 =
  40. 40.8.9 × 0.13 =

Answer key

  1. 0.266
  2. 29.12
  3. 0.054
  4. 0.168
  5. 0.188
  6. 0.045
  7. 8.16
  8. 2.205
  9. 2.8
  10. 0.748
  11. 1.953
  12. 0.899
  13. 0.935
  14. 16.74
  15. 0.42
  16. 4.76
  17. 1.287
  18. 28.21
  19. 2.508
  20. 3.648
  21. 1.628
  22. 0.434
  23. 1.656
  24. 0.051
  25. 0.516
  26. 0.924
  27. 0.98
  28. 0.063
  29. 1.275
  30. 7.36
  31. 1.472
  32. 1.98
  33. 0.854
  34. 0.14
  35. 1.722
  36. 2.304
  37. 0.162
  38. 0.713
  39. 31.08
  40. 1.157

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