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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 895 · 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. 1.9.1 × 0.11 =
  2. 2.4.2 × 0.16 =
  3. 3.4.8 × 3.1 =
  4. 4.0.92 × 0.6 =
  5. 5.0.38 × 1.4 =
  6. 6.0.22 × 3.3 =
  7. 7.0.27 × 1.8 =
  8. 8.5.4 × 0.14 =
  9. 9.0.08 × 1.2 =
  10. 10.0.54 × 0.8 =
  11. 11.0.49 × 2.7 =
  12. 12.0.37 × 3.8 =
  13. 13.0.11 × 2.9 =
  14. 14.0.3 × 0.15 =
  15. 15.0.21 × 2.2 =
  16. 16.4.1 × 2.2 =
  17. 17.4.1 × 0.22 =
  18. 18.2.7 × 3.1 =
  19. 19.0.83 × 0.6 =
  20. 20.0.16 × 2.5 =
  21. 21.4.4 × 0.3 =
  22. 22.6.6 × 0.31 =
  23. 23.3.8 × 1.2 =
  24. 24.0.74 × 0.3 =
  25. 25.0.3 × 0.4 =
  26. 26.0.73 × 3.3 =
  27. 27.0.02 × 0.2 =
  28. 28.0.08 × 2.2 =
  29. 29.1.3 × 0.27 =
  30. 30.0.77 × 1.5 =
  31. 31.4.7 × 2.1 =
  32. 32.1.9 × 0.12 =
  33. 33.3.2 × 0.06 =
  34. 34.0.74 × 3.8 =
  35. 35.8.6 × 0.9 =
  36. 36.2.4 × 3.6 =
  37. 37.9.2 × 3.9 =
  38. 38.0.65 × 3.8 =
  39. 39.0.51 × 3.9 =
  40. 40.0.98 × 3.8 =

Answer key

  1. 1.001
  2. 0.672
  3. 14.88
  4. 0.552
  5. 0.532
  6. 0.726
  7. 0.486
  8. 0.756
  9. 0.096
  10. 0.432
  11. 1.323
  12. 1.406
  13. 0.319
  14. 0.045
  15. 0.462
  16. 9.02
  17. 0.902
  18. 8.37
  19. 0.498
  20. 0.4
  21. 1.32
  22. 2.046
  23. 4.56
  24. 0.222
  25. 0.12
  26. 2.409
  27. 0.004
  28. 0.176
  29. 0.351
  30. 1.155
  31. 9.87
  32. 0.228
  33. 0.192
  34. 2.812
  35. 7.74
  36. 8.64
  37. 35.88
  38. 2.47
  39. 1.989
  40. 3.724

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