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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 72 − 83 by rounding each number to the nearest 10: ______
  2. Estimate 89 + 34 by rounding each number to the nearest 10: ______
  3. Estimate 81 − 33 by rounding each number to the nearest 10: ______
  4. Estimate 57 − 60 by rounding each number to the nearest 10: ______
  5. Estimate 72 + 37 by rounding each number to the nearest 10: ______
  6. Estimate 35 + 71 by rounding each number to the nearest 10: ______
  7. Estimate 89 − 72 by rounding each number to the nearest 10: ______
  8. Estimate 63 + 56 by rounding each number to the nearest 10: ______
  9. Estimate 21 − 74 by rounding each number to the nearest 10: ______
  10. Estimate 68 + 37 by rounding each number to the nearest 10: ______
  11. Estimate 63 + 35 by rounding each number to the nearest 10: ______
  12. Estimate 69 − 22 by rounding each number to the nearest 10: ______
  13. Estimate 79 − 69 by rounding each number to the nearest 10: ______
  14. Estimate 76 + 46 by rounding each number to the nearest 10: ______
  15. Estimate 71 + 55 by rounding each number to the nearest 10: ______
  16. Estimate 54 + 70 by rounding each number to the nearest 10: ______
  17. Estimate 37 − 36 by rounding each number to the nearest 10: ______
  18. Estimate 35 − 28 by rounding each number to the nearest 10: ______
  19. Estimate 50 − 63 by rounding each number to the nearest 10: ______
  20. Estimate 39 − 71 by rounding each number to the nearest 10: ______