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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 26 − 31 by rounding each number to the nearest 10: ______
  2. Estimate 52 − 31 by rounding each number to the nearest 10: ______
  3. Estimate 50 − 47 by rounding each number to the nearest 10: ______
  4. Estimate 87 − 64 by rounding each number to the nearest 10: ______
  5. Estimate 25 + 32 by rounding each number to the nearest 10: ______
  6. Estimate 86 − 64 by rounding each number to the nearest 10: ______
  7. Estimate 23 + 60 by rounding each number to the nearest 10: ______
  8. Estimate 46 − 26 by rounding each number to the nearest 10: ______
  9. Estimate 63 − 42 by rounding each number to the nearest 10: ______
  10. Estimate 65 − 25 by rounding each number to the nearest 10: ______
  11. Estimate 64 + 45 by rounding each number to the nearest 10: ______
  12. Estimate 64 + 53 by rounding each number to the nearest 10: ______
  13. Estimate 36 + 37 by rounding each number to the nearest 10: ______
  14. Estimate 64 − 65 by rounding each number to the nearest 10: ______
  15. Estimate 78 + 67 by rounding each number to the nearest 10: ______
  16. Estimate 63 + 39 by rounding each number to the nearest 10: ______
  17. Estimate 72 + 75 by rounding each number to the nearest 10: ______
  18. Estimate 22 − 35 by rounding each number to the nearest 10: ______
  19. Estimate 33 + 89 by rounding each number to the nearest 10: ______
  20. Estimate 78 − 54 by rounding each number to the nearest 10: ______