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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 372 · 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. 1.2.4 × 2.8 =
  2. 2.0.5 × 0.37 =
  3. 3.2.2 × 2.7 =
  4. 4.7.6 × 0.28 =
  5. 5.8.3 × 0.09 =
  6. 6.0.75 × 3.2 =
  7. 7.7.7 × 0.32 =
  8. 8.0.55 × 0.6 =
  9. 9.0.45 × 1.6 =
  10. 10.0.34 × 1.8 =
  11. 11.8.1 × 2.5 =
  12. 12.5.5 × 0.21 =
  13. 13.0.2 × 3.7 =
  14. 14.0.93 × 2.9 =
  15. 15.4.2 × 0.21 =
  16. 16.7.1 × 1.2 =
  17. 17.2.5 × 0.21 =
  18. 18.3.6 × 0.07 =
  19. 19.0.18 × 0.2 =
  20. 20.6.8 × 0.04 =
  21. 21.0.6 × 0.16 =
  22. 22.0.61 × 0.3 =
  23. 23.6.8 × 0.18 =
  24. 24.8.7 × 2.2 =
  25. 25.6.8 × 2.7 =
  26. 26.0.98 × 3.2 =
  27. 27.0.13 × 0.4 =
  28. 28.0.52 × 0.4 =
  29. 29.3.3 × 1.1 =
  30. 30.4.2 × 0.17 =
  31. 31.2.1 × 3.1 =
  32. 32.6.7 × 3.1 =
  33. 33.0.59 × 3.4 =
  34. 34.0.32 × 0.9 =
  35. 35.4.7 × 1.3 =
  36. 36.7.4 × 2.9 =
  37. 37.0.46 × 2.3 =
  38. 38.5.1 × 1.8 =
  39. 39.2.1 × 3.9 =
  40. 40.9.5 × 0.2 =

Answer key

  1. 6.72
  2. 0.185
  3. 5.94
  4. 2.128
  5. 0.747
  6. 2.4
  7. 2.464
  8. 0.33
  9. 0.72
  10. 0.612
  11. 20.25
  12. 1.155
  13. 0.74
  14. 2.697
  15. 0.882
  16. 8.52
  17. 0.525
  18. 0.252
  19. 0.036
  20. 0.272
  21. 0.096
  22. 0.183
  23. 1.224
  24. 19.14
  25. 18.36
  26. 3.136
  27. 0.052
  28. 0.208
  29. 3.63
  30. 0.714
  31. 6.51
  32. 20.77
  33. 2.006
  34. 0.288
  35. 6.11
  36. 21.46
  37. 1.058
  38. 9.18
  39. 8.19
  40. 1.9

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