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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 513 · 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. 1.2.1 × 0.7 =
  2. 2.1.6 × 0.16 =
  3. 3.2.2 × 0.08 =
  4. 4.6.6 × 1.1 =
  5. 5.0.96 × 2.4 =
  6. 6.6.5 × 2.4 =
  7. 7.0.9 × 1.9 =
  8. 8.0.81 × 3.2 =
  9. 9.0.18 × 2.3 =
  10. 10.1.2 × 3.2 =
  11. 11.8.1 × 0.6 =
  12. 12.4.6 × 0.28 =
  13. 13.7.3 × 0.07 =
  14. 14.0.58 × 3.7 =
  15. 15.7.1 × 1.1 =
  16. 16.3.1 × 2.9 =
  17. 17.0.23 × 2.2 =
  18. 18.0.95 × 1.2 =
  19. 19.0.48 × 0.7 =
  20. 20.5.9 × 0.36 =
  21. 21.4.1 × 1.4 =
  22. 22.1.9 × 0.5 =
  23. 23.5.1 × 0.14 =
  24. 24.7.9 × 0.5 =
  25. 25.7.1 × 0.17 =
  26. 26.0.81 × 1.6 =
  27. 27.0.88 × 0.2 =
  28. 28.0.12 × 3.1 =
  29. 29.9.9 × 0.06 =
  30. 30.0.31 × 2.6 =
  31. 31.0.32 × 3.4 =
  32. 32.0.9 × 0.37 =
  33. 33.0.42 × 1.1 =
  34. 34.9.7 × 0.27 =
  35. 35.5.6 × 0.7 =
  36. 36.1.4 × 3.6 =
  37. 37.0.05 × 2.7 =
  38. 38.5.4 × 0.31 =
  39. 39.5.9 × 3.2 =
  40. 40.0.98 × 0.8 =

Answer key

  1. 1.47
  2. 0.256
  3. 0.176
  4. 7.26
  5. 2.304
  6. 15.6
  7. 1.71
  8. 2.592
  9. 0.414
  10. 3.84
  11. 4.86
  12. 1.288
  13. 0.511
  14. 2.146
  15. 7.81
  16. 8.99
  17. 0.506
  18. 1.14
  19. 0.336
  20. 2.124
  21. 5.74
  22. 0.95
  23. 0.714
  24. 3.95
  25. 1.207
  26. 1.296
  27. 0.176
  28. 0.372
  29. 0.594
  30. 0.806
  31. 1.088
  32. 0.333
  33. 0.462
  34. 2.619
  35. 3.92
  36. 5.04
  37. 0.135
  38. 1.674
  39. 18.88
  40. 0.784

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