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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 575 · 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. 1.2.8 × 0.5 =
  2. 2.2.8 × 0.04 =
  3. 3.0.08 × 3.4 =
  4. 4.0.81 × 0.4 =
  5. 5.0.12 × 2.4 =
  6. 6.7.1 × 0.09 =
  7. 7.9.3 × 0.5 =
  8. 8.8.1 × 0.14 =
  9. 9.5.3 × 0.04 =
  10. 10.8.8 × 3.1 =
  11. 11.6.1 × 0.11 =
  12. 12.1.1 × 3.2 =
  13. 13.0.9 × 0.31 =
  14. 14.0.31 × 2.1 =
  15. 15.0.51 × 3.1 =
  16. 16.2.2 × 0.33 =
  17. 17.2.8 × 0.37 =
  18. 18.4.7 × 0.16 =
  19. 19.0.99 × 1.1 =
  20. 20.1.9 × 0.8 =
  21. 21.6.6 × 2.2 =
  22. 22.0.16 × 1.6 =
  23. 23.9.7 × 1.3 =
  24. 24.4.6 × 0.6 =
  25. 25.4.3 × 2.1 =
  26. 26.2.9 × 0.07 =
  27. 27.0.12 × 2.3 =
  28. 28.2.5 × 1.8 =
  29. 29.0.37 × 1.1 =
  30. 30.4.7 × 0.12 =
  31. 31.0.61 × 2.1 =
  32. 32.5.9 × 0.8 =
  33. 33.0.02 × 2.6 =
  34. 34.1.9 × 3.8 =
  35. 35.1.3 × 3.7 =
  36. 36.2.3 × 0.21 =
  37. 37.2.4 × 2.6 =
  38. 38.6.8 × 2.6 =
  39. 39.1.4 × 3.6 =
  40. 40.2.6 × 0.6 =

Answer key

  1. 1.4
  2. 0.112
  3. 0.272
  4. 0.324
  5. 0.288
  6. 0.639
  7. 4.65
  8. 1.134
  9. 0.212
  10. 27.28
  11. 0.671
  12. 3.52
  13. 0.279
  14. 0.651
  15. 1.581
  16. 0.726
  17. 1.036
  18. 0.752
  19. 1.089
  20. 1.52
  21. 14.52
  22. 0.256
  23. 12.61
  24. 2.76
  25. 9.03
  26. 0.203
  27. 0.276
  28. 4.5
  29. 0.407
  30. 0.564
  31. 1.281
  32. 4.72
  33. 0.052
  34. 7.22
  35. 4.81
  36. 0.483
  37. 6.24
  38. 17.68
  39. 5.04
  40. 1.56

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