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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 + 77 by rounding each number to the nearest 10: ______
  2. Estimate 77 − 85 by rounding each number to the nearest 10: ______
  3. Estimate 41 − 61 by rounding each number to the nearest 10: ______
  4. Estimate 22 + 78 by rounding each number to the nearest 10: ______
  5. Estimate 75 − 48 by rounding each number to the nearest 10: ______
  6. Estimate 42 − 51 by rounding each number to the nearest 10: ______
  7. Estimate 34 + 89 by rounding each number to the nearest 10: ______
  8. Estimate 56 + 62 by rounding each number to the nearest 10: ______
  9. Estimate 35 + 30 by rounding each number to the nearest 10: ______
  10. Estimate 57 + 74 by rounding each number to the nearest 10: ______
  11. Estimate 62 + 59 by rounding each number to the nearest 10: ______
  12. Estimate 43 + 58 by rounding each number to the nearest 10: ______
  13. Estimate 78 + 61 by rounding each number to the nearest 10: ______
  14. Estimate 64 − 21 by rounding each number to the nearest 10: ______
  15. Estimate 77 + 87 by rounding each number to the nearest 10: ______
  16. Estimate 24 − 87 by rounding each number to the nearest 10: ______
  17. Estimate 44 + 48 by rounding each number to the nearest 10: ______
  18. Estimate 51 − 86 by rounding each number to the nearest 10: ______
  19. Estimate 29 − 60 by rounding each number to the nearest 10: ______
  20. Estimate 38 + 76 by rounding each number to the nearest 10: ______