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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 958 · 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 × 0.6 =
  2. 2.0.41 × 2.9 =
  3. 3.0.57 × 3.1 =
  4. 4.4.9 × 0.02 =
  5. 5.0.18 × 3.5 =
  6. 6.6.9 × 1.3 =
  7. 7.0.53 × 0.6 =
  8. 8.0.53 × 1.3 =
  9. 9.0.03 × 3.4 =
  10. 10.0.81 × 3.1 =
  11. 11.0.03 × 2.4 =
  12. 12.0.73 × 1.4 =
  13. 13.6.8 × 3.7 =
  14. 14.9.3 × 2.7 =
  15. 15.2.2 × 0.11 =
  16. 16.0.52 × 0.8 =
  17. 17.0.64 × 1.2 =
  18. 18.2.7 × 2.8 =
  19. 19.4.5 × 2.4 =
  20. 20.1.2 × 0.26 =
  21. 21.0.31 × 1.6 =
  22. 22.0.45 × 1.6 =
  23. 23.0.21 × 0.7 =
  24. 24.0.93 × 0.8 =
  25. 25.5.9 × 0.11 =
  26. 26.0.05 × 3.7 =
  27. 27.0.27 × 1.8 =
  28. 28.0.53 × 3.7 =
  29. 29.0.43 × 3.1 =
  30. 30.1.5 × 0.34 =
  31. 31.0.07 × 3.2 =
  32. 32.0.18 × 2.2 =
  33. 33.8.3 × 0.31 =
  34. 34.0.18 × 2.1 =
  35. 35.0.52 × 0.4 =
  36. 36.1.9 × 2.1 =
  37. 37.4.7 × 0.23 =
  38. 38.3.1 × 2.1 =
  39. 39.0.36 × 0.7 =
  40. 40.6.2 × 0.07 =

Answer key

  1. 5.46
  2. 1.189
  3. 1.767
  4. 0.098
  5. 0.63
  6. 8.97
  7. 0.318
  8. 0.689
  9. 0.102
  10. 2.511
  11. 0.072
  12. 1.022
  13. 25.16
  14. 25.11
  15. 0.242
  16. 0.416
  17. 0.768
  18. 7.56
  19. 10.8
  20. 0.312
  21. 0.496
  22. 0.72
  23. 0.147
  24. 0.744
  25. 0.649
  26. 0.185
  27. 0.486
  28. 1.961
  29. 1.333
  30. 0.51
  31. 0.224
  32. 0.396
  33. 2.573
  34. 0.378
  35. 0.208
  36. 3.99
  37. 1.081
  38. 6.51
  39. 0.252
  40. 0.434

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