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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 329 · 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. 1.7.8 × 1.3 =
  2. 2.5.4 × 0.8 =
  3. 3.0.34 × 2.6 =
  4. 4.7.1 × 3.7 =
  5. 5.3.7 × 0.32 =
  6. 6.2.8 × 0.33 =
  7. 7.9.2 × 1.8 =
  8. 8.0.65 × 1.3 =
  9. 9.4.4 × 0.26 =
  10. 10.0.02 × 2.1 =
  11. 11.2.4 × 0.38 =
  12. 12.0.82 × 0.5 =
  13. 13.0.29 × 1.6 =
  14. 14.6.2 × 0.11 =
  15. 15.0.72 × 3.5 =
  16. 16.0.7 × 2.9 =
  17. 17.7.5 × 0.15 =
  18. 18.0.41 × 0.5 =
  19. 19.7.1 × 1.7 =
  20. 20.6.4 × 0.07 =
  21. 21.0.31 × 0.4 =
  22. 22.0.41 × 1.6 =
  23. 23.2.5 × 3.7 =
  24. 24.0.03 × 1.1 =
  25. 25.3.5 × 1.3 =
  26. 26.0.64 × 1.2 =
  27. 27.0.63 × 2.3 =
  28. 28.0.76 × 0.5 =
  29. 29.0.9 × 1.1 =
  30. 30.0.7 × 2.8 =
  31. 31.0.6 × 0.11 =
  32. 32.0.2 × 2.6 =
  33. 33.0.67 × 1.2 =
  34. 34.0.13 × 2.9 =
  35. 35.0.18 × 3.8 =
  36. 36.1.1 × 2.1 =
  37. 37.2.7 × 2.6 =
  38. 38.8.4 × 2.6 =
  39. 39.2.9 × 0.21 =
  40. 40.2.1 × 3.6 =

Answer key

  1. 10.14
  2. 4.32
  3. 0.884
  4. 26.27
  5. 1.184
  6. 0.924
  7. 16.56
  8. 0.845
  9. 1.144
  10. 0.042
  11. 0.912
  12. 0.41
  13. 0.464
  14. 0.682
  15. 2.52
  16. 2.03
  17. 1.125
  18. 0.205
  19. 12.07
  20. 0.448
  21. 0.124
  22. 0.656
  23. 9.25
  24. 0.033
  25. 4.55
  26. 0.768
  27. 1.449
  28. 0.38
  29. 0.99
  30. 1.96
  31. 0.066
  32. 0.52
  33. 0.804
  34. 0.377
  35. 0.684
  36. 2.31
  37. 7.02
  38. 21.84
  39. 0.609
  40. 7.56

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