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Multiplying Decimals Worksheet

Speed calculation lesson 18: Decimal × decimal · Set 972 · 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. 1.6.2 × 1.1 =
  2. 2.0.97 × 3.2 =
  3. 3.9.1 × 0.35 =
  4. 4.0.76 × 0.8 =
  5. 5.1.7 × 1.6 =
  6. 6.0.91 × 3.2 =
  7. 7.0.78 × 3.1 =
  8. 8.3.3 × 0.6 =
  9. 9.0.03 × 3.3 =
  10. 10.0.06 × 0.9 =
  11. 11.0.42 × 2.6 =
  12. 12.3.9 × 0.7 =
  13. 13.5.9 × 0.2 =
  14. 14.4.7 × 0.16 =
  15. 15.0.16 × 3.4 =
  16. 16.1.2 × 0.38 =
  17. 17.0.43 × 0.5 =
  18. 18.5.5 × 0.04 =
  19. 19.1.1 × 0.36 =
  20. 20.6.1 × 0.26 =
  21. 21.0.45 × 0.7 =
  22. 22.0.21 × 2.1 =
  23. 23.0.66 × 1.5 =
  24. 24.0.2 × 0.06 =
  25. 25.2.1 × 0.29 =
  26. 26.0.71 × 2.7 =
  27. 27.0.06 × 0.4 =
  28. 28.0.94 × 0.4 =
  29. 29.0.8 × 0.34 =
  30. 30.0.83 × 0.7 =
  31. 31.1.9 × 0.09 =
  32. 32.4.9 × 0.11 =
  33. 33.8.3 × 0.25 =
  34. 34.8.1 × 0.04 =
  35. 35.0.69 × 0.2 =
  36. 36.0.4 × 1.8 =
  37. 37.9.1 × 0.2 =
  38. 38.9.1 × 1.3 =
  39. 39.3.3 × 1.8 =
  40. 40.0.86 × 3.5 =

Answer key

  1. 6.82
  2. 3.104
  3. 3.185
  4. 0.608
  5. 2.72
  6. 2.912
  7. 2.418
  8. 1.98
  9. 0.099
  10. 0.054
  11. 1.092
  12. 2.73
  13. 1.18
  14. 0.752
  15. 0.544
  16. 0.456
  17. 0.215
  18. 0.22
  19. 0.396
  20. 1.586
  21. 0.315
  22. 0.441
  23. 0.99
  24. 0.012
  25. 0.609
  26. 1.917
  27. 0.024
  28. 0.376
  29. 0.272
  30. 0.581
  31. 0.171
  32. 0.539
  33. 2.075
  34. 0.324
  35. 0.138
  36. 0.72
  37. 1.82
  38. 11.83
  39. 5.94
  40. 3.01

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