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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 562 · 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. 1.1.9 × 1.7 =
  2. 2.2.8 × 3.6 =
  3. 3.6.7 × 2.4 =
  4. 4.6.7 × 0.16 =
  5. 5.0.91 × 3.6 =
  6. 6.0.38 × 1.3 =
  7. 7.3.1 × 0.23 =
  8. 8.4.5 × 0.21 =
  9. 9.2.8 × 3.1 =
  10. 10.0.57 × 2.8 =
  11. 11.0.26 × 2.1 =
  12. 12.4.4 × 0.15 =
  13. 13.6.2 × 1.1 =
  14. 14.0.24 × 3.1 =
  15. 15.0.05 × 3.1 =
  16. 16.0.35 × 1.1 =
  17. 17.6.6 × 0.16 =
  18. 18.0.02 × 0.3 =
  19. 19.8.8 × 0.6 =
  20. 20.8.7 × 0.03 =
  21. 21.7.7 × 1.3 =
  22. 22.8.8 × 0.16 =
  23. 23.0.31 × 1.1 =
  24. 24.0.09 × 0.2 =
  25. 25.0.5 × 0.08 =
  26. 26.0.24 × 1.3 =
  27. 27.5.6 × 0.12 =
  28. 28.3.4 × 1.9 =
  29. 29.3.5 × 3.5 =
  30. 30.0.62 × 3.1 =
  31. 31.0.79 × 3.1 =
  32. 32.0.31 × 1.9 =
  33. 33.7.4 × 0.06 =
  34. 34.2.1 × 3.2 =
  35. 35.0.08 × 2.8 =
  36. 36.7.2 × 0.02 =
  37. 37.8.1 × 0.37 =
  38. 38.0.45 × 1.5 =
  39. 39.6.3 × 0.02 =
  40. 40.0.88 × 3.1 =

Answer key

  1. 3.23
  2. 10.08
  3. 16.08
  4. 1.072
  5. 3.276
  6. 0.494
  7. 0.713
  8. 0.945
  9. 8.68
  10. 1.596
  11. 0.546
  12. 0.66
  13. 6.82
  14. 0.744
  15. 0.155
  16. 0.385
  17. 1.056
  18. 0.006
  19. 5.28
  20. 0.261
  21. 10.01
  22. 1.408
  23. 0.341
  24. 0.018
  25. 0.04
  26. 0.312
  27. 0.672
  28. 6.46
  29. 12.25
  30. 1.922
  31. 2.449
  32. 0.589
  33. 0.444
  34. 6.72
  35. 0.224
  36. 0.144
  37. 2.997
  38. 0.675
  39. 0.126
  40. 2.728

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