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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 23 − 81 by rounding each number to the nearest 10: ______
  2. Estimate 35 − 40 by rounding each number to the nearest 10: ______
  3. Estimate 50 + 75 by rounding each number to the nearest 10: ______
  4. Estimate 26 − 88 by rounding each number to the nearest 10: ______
  5. Estimate 72 + 74 by rounding each number to the nearest 10: ______
  6. Estimate 76 − 43 by rounding each number to the nearest 10: ______
  7. Estimate 28 − 25 by rounding each number to the nearest 10: ______
  8. Estimate 50 − 50 by rounding each number to the nearest 10: ______
  9. Estimate 42 + 28 by rounding each number to the nearest 10: ______
  10. Estimate 47 − 38 by rounding each number to the nearest 10: ______
  11. Estimate 68 − 25 by rounding each number to the nearest 10: ______
  12. Estimate 86 − 27 by rounding each number to the nearest 10: ______
  13. Estimate 63 − 39 by rounding each number to the nearest 10: ______
  14. Estimate 55 − 88 by rounding each number to the nearest 10: ______
  15. Estimate 28 + 89 by rounding each number to the nearest 10: ______
  16. Estimate 85 + 88 by rounding each number to the nearest 10: ______
  17. Estimate 36 + 58 by rounding each number to the nearest 10: ______
  18. Estimate 39 − 85 by rounding each number to the nearest 10: ______
  19. Estimate 51 − 65 by rounding each number to the nearest 10: ______
  20. Estimate 38 − 39 by rounding each number to the nearest 10: ______