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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 558 · 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. 1.2.2 × 1.4 =
  2. 2.0.03 × 0.3 =
  3. 3.7.1 × 1.9 =
  4. 4.0.7 × 0.03 =
  5. 5.9.7 × 0.21 =
  6. 6.4.2 × 2.1 =
  7. 7.7.6 × 0.9 =
  8. 8.0.03 × 0.5 =
  9. 9.1.3 × 3.1 =
  10. 10.4.8 × 3.4 =
  11. 11.0.22 × 0.9 =
  12. 12.6.3 × 0.22 =
  13. 13.5.5 × 0.02 =
  14. 14.0.42 × 2.2 =
  15. 15.1.7 × 1.3 =
  16. 16.0.45 × 0.7 =
  17. 17.6.8 × 3.9 =
  18. 18.0.6 × 2.8 =
  19. 19.0.37 × 1.8 =
  20. 20.3.5 × 2.6 =
  21. 21.5.1 × 0.05 =
  22. 22.0.38 × 1.9 =
  23. 23.2.8 × 3.2 =
  24. 24.0.67 × 1.5 =
  25. 25.0.63 × 2.8 =
  26. 26.0.3 × 3.8 =
  27. 27.4.4 × 0.11 =
  28. 28.6.6 × 0.06 =
  29. 29.0.62 × 0.4 =
  30. 30.0.72 × 3.1 =
  31. 31.0.06 × 0.3 =
  32. 32.9.1 × 0.11 =
  33. 33.0.24 × 1.2 =
  34. 34.6.4 × 2.9 =
  35. 35.2.7 × 3.9 =
  36. 36.2.7 × 0.7 =
  37. 37.0.51 × 2.1 =
  38. 38.8.2 × 3.6 =
  39. 39.9.1 × 3.5 =
  40. 40.0.79 × 3.3 =

Answer key

  1. 3.08
  2. 0.009
  3. 13.49
  4. 0.021
  5. 2.037
  6. 8.82
  7. 6.84
  8. 0.015
  9. 4.03
  10. 16.32
  11. 0.198
  12. 1.386
  13. 0.11
  14. 0.924
  15. 2.21
  16. 0.315
  17. 26.52
  18. 1.68
  19. 0.666
  20. 9.1
  21. 0.255
  22. 0.722
  23. 8.96
  24. 1.005
  25. 1.764
  26. 1.14
  27. 0.484
  28. 0.396
  29. 0.248
  30. 2.232
  31. 0.018
  32. 1.001
  33. 0.288
  34. 18.56
  35. 10.53
  36. 1.89
  37. 1.071
  38. 29.52
  39. 31.85
  40. 2.607

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