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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 34 − 89 by rounding each number to the nearest 10: ______
  2. Estimate 72 + 21 by rounding each number to the nearest 10: ______
  3. Estimate 74 + 41 by rounding each number to the nearest 10: ______
  4. Estimate 65 − 40 by rounding each number to the nearest 10: ______
  5. Estimate 60 − 72 by rounding each number to the nearest 10: ______
  6. Estimate 35 + 75 by rounding each number to the nearest 10: ______
  7. Estimate 37 − 47 by rounding each number to the nearest 10: ______
  8. Estimate 24 − 54 by rounding each number to the nearest 10: ______
  9. Estimate 24 + 31 by rounding each number to the nearest 10: ______
  10. Estimate 49 + 82 by rounding each number to the nearest 10: ______
  11. Estimate 61 + 33 by rounding each number to the nearest 10: ______
  12. Estimate 50 − 89 by rounding each number to the nearest 10: ______
  13. Estimate 23 + 81 by rounding each number to the nearest 10: ______
  14. Estimate 61 + 35 by rounding each number to the nearest 10: ______
  15. Estimate 29 − 26 by rounding each number to the nearest 10: ______
  16. Estimate 83 − 22 by rounding each number to the nearest 10: ______
  17. Estimate 50 + 52 by rounding each number to the nearest 10: ______
  18. Estimate 48 + 35 by rounding each number to the nearest 10: ______
  19. Estimate 78 + 69 by rounding each number to the nearest 10: ______
  20. Estimate 85 + 80 by rounding each number to the nearest 10: ______