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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 56 + 65 by rounding each number to the nearest 10: ______
  2. Estimate 35 + 89 by rounding each number to the nearest 10: ______
  3. Estimate 62 + 29 by rounding each number to the nearest 10: ______
  4. Estimate 54 − 55 by rounding each number to the nearest 10: ______
  5. Estimate 36 + 28 by rounding each number to the nearest 10: ______
  6. Estimate 36 − 49 by rounding each number to the nearest 10: ______
  7. Estimate 65 + 40 by rounding each number to the nearest 10: ______
  8. Estimate 38 + 65 by rounding each number to the nearest 10: ______
  9. Estimate 49 − 33 by rounding each number to the nearest 10: ______
  10. Estimate 84 − 83 by rounding each number to the nearest 10: ______
  11. Estimate 80 + 52 by rounding each number to the nearest 10: ______
  12. Estimate 27 + 59 by rounding each number to the nearest 10: ______
  13. Estimate 89 + 23 by rounding each number to the nearest 10: ______
  14. Estimate 81 + 83 by rounding each number to the nearest 10: ______
  15. Estimate 23 − 53 by rounding each number to the nearest 10: ______
  16. Estimate 25 − 63 by rounding each number to the nearest 10: ______
  17. Estimate 48 + 29 by rounding each number to the nearest 10: ______
  18. Estimate 89 + 44 by rounding each number to the nearest 10: ______
  19. Estimate 27 − 47 by rounding each number to the nearest 10: ______
  20. Estimate 21 + 51 by rounding each number to the nearest 10: ______