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Estimación Worksheet

Recommended for 2do grado — 5to grado

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Estimación Worksheet

Name: ____________________Date: ____________

Instructions: Estimar sumas, diferencias y productos mediante redondeo y números compatibles.

20 problems

  1. Estimate 55 − 24 by rounding each number to the nearest 10: ______
  2. Estimate 27 + 44 by rounding each number to the nearest 10: ______
  3. Estimate 71 + 86 by rounding each number to the nearest 10: ______
  4. Estimate 27 + 86 by rounding each number to the nearest 10: ______
  5. Estimate 70 + 25 by rounding each number to the nearest 10: ______
  6. Estimate 64 + 75 by rounding each number to the nearest 10: ______
  7. Estimate 42 + 86 by rounding each number to the nearest 10: ______
  8. Estimate 47 − 88 by rounding each number to the nearest 10: ______
  9. Estimate 26 − 83 by rounding each number to the nearest 10: ______
  10. Estimate 55 + 28 by rounding each number to the nearest 10: ______
  11. Estimate 87 + 65 by rounding each number to the nearest 10: ______
  12. Estimate 45 + 34 by rounding each number to the nearest 10: ______
  13. Estimate 37 + 81 by rounding each number to the nearest 10: ______
  14. Estimate 53 − 37 by rounding each number to the nearest 10: ______
  15. Estimate 78 − 39 by rounding each number to the nearest 10: ______
  16. Estimate 22 + 84 by rounding each number to the nearest 10: ______
  17. Estimate 81 + 48 by rounding each number to the nearest 10: ______
  18. Estimate 49 − 22 by rounding each number to the nearest 10: ______
  19. Estimate 56 + 47 by rounding each number to the nearest 10: ______
  20. Estimate 31 + 70 by rounding each number to the nearest 10: ______