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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 378 · 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. 1.0.22 × 2.8 =
  2. 2.6.1 × 0.26 =
  3. 3.1.1 × 0.2 =
  4. 4.4.9 × 2.6 =
  5. 5.1.1 × 0.8 =
  6. 6.0.99 × 2.6 =
  7. 7.1.3 × 3.7 =
  8. 8.8.5 × 0.17 =
  9. 9.2.1 × 0.02 =
  10. 10.0.28 × 0.6 =
  11. 11.0.91 × 1.1 =
  12. 12.0.35 × 0.3 =
  13. 13.5.3 × 2.3 =
  14. 14.0.51 × 2.5 =
  15. 15.0.37 × 3.8 =
  16. 16.0.43 × 3.1 =
  17. 17.0.71 × 3.5 =
  18. 18.0.56 × 2.5 =
  19. 19.2.6 × 1.3 =
  20. 20.7.4 × 0.03 =
  21. 21.2.1 × 3.9 =
  22. 22.0.18 × 0.3 =
  23. 23.4.9 × 0.32 =
  24. 24.0.33 × 3.6 =
  25. 25.8.1 × 0.02 =
  26. 26.0.19 × 3.1 =
  27. 27.7.7 × 0.12 =
  28. 28.0.65 × 2.7 =
  29. 29.0.19 × 0.6 =
  30. 30.8.2 × 3.3 =
  31. 31.3.3 × 1.1 =
  32. 32.0.35 × 1.5 =
  33. 33.6.1 × 3.6 =
  34. 34.0.87 × 1.2 =
  35. 35.0.56 × 3.8 =
  36. 36.0.03 × 2.2 =
  37. 37.1.9 × 3.4 =
  38. 38.5.4 × 2.3 =
  39. 39.0.7 × 1.7 =
  40. 40.6.8 × 0.21 =

Answer key

  1. 0.616
  2. 1.586
  3. 0.22
  4. 12.74
  5. 0.88
  6. 2.574
  7. 4.81
  8. 1.445
  9. 0.042
  10. 0.168
  11. 1.001
  12. 0.105
  13. 12.19
  14. 1.275
  15. 1.406
  16. 1.333
  17. 2.485
  18. 1.4
  19. 3.38
  20. 0.222
  21. 8.19
  22. 0.054
  23. 1.568
  24. 1.188
  25. 0.162
  26. 0.589
  27. 0.924
  28. 1.755
  29. 0.114
  30. 27.06
  31. 3.63
  32. 0.525
  33. 21.96
  34. 1.044
  35. 2.128
  36. 0.066
  37. 6.46
  38. 12.42
  39. 1.19
  40. 1.428

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