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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 50 − 50 by rounding each number to the nearest 10: ______
  2. Estimate 75 − 48 by rounding each number to the nearest 10: ______
  3. Estimate 43 − 43 by rounding each number to the nearest 10: ______
  4. Estimate 87 + 49 by rounding each number to the nearest 10: ______
  5. Estimate 88 − 72 by rounding each number to the nearest 10: ______
  6. Estimate 54 − 88 by rounding each number to the nearest 10: ______
  7. Estimate 48 − 84 by rounding each number to the nearest 10: ______
  8. Estimate 44 − 42 by rounding each number to the nearest 10: ______
  9. Estimate 58 − 63 by rounding each number to the nearest 10: ______
  10. Estimate 74 + 49 by rounding each number to the nearest 10: ______
  11. Estimate 89 + 72 by rounding each number to the nearest 10: ______
  12. Estimate 87 − 84 by rounding each number to the nearest 10: ______
  13. Estimate 33 − 42 by rounding each number to the nearest 10: ______
  14. Estimate 54 + 24 by rounding each number to the nearest 10: ______
  15. Estimate 77 + 61 by rounding each number to the nearest 10: ______
  16. Estimate 27 − 43 by rounding each number to the nearest 10: ______
  17. Estimate 42 + 79 by rounding each number to the nearest 10: ______
  18. Estimate 76 + 84 by rounding each number to the nearest 10: ______
  19. Estimate 85 − 39 by rounding each number to the nearest 10: ______
  20. Estimate 34 − 40 by rounding each number to the nearest 10: ______