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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 45 − 80 by rounding each number to the nearest 10: ______
  2. Estimate 48 − 36 by rounding each number to the nearest 10: ______
  3. Estimate 43 − 84 by rounding each number to the nearest 10: ______
  4. Estimate 59 − 82 by rounding each number to the nearest 10: ______
  5. Estimate 88 − 42 by rounding each number to the nearest 10: ______
  6. Estimate 74 + 28 by rounding each number to the nearest 10: ______
  7. Estimate 75 + 24 by rounding each number to the nearest 10: ______
  8. Estimate 84 + 44 by rounding each number to the nearest 10: ______
  9. Estimate 56 − 87 by rounding each number to the nearest 10: ______
  10. Estimate 25 + 31 by rounding each number to the nearest 10: ______
  11. Estimate 85 + 58 by rounding each number to the nearest 10: ______
  12. Estimate 22 + 78 by rounding each number to the nearest 10: ______
  13. Estimate 49 − 51 by rounding each number to the nearest 10: ______
  14. Estimate 67 + 51 by rounding each number to the nearest 10: ______
  15. Estimate 42 − 45 by rounding each number to the nearest 10: ______
  16. Estimate 27 − 89 by rounding each number to the nearest 10: ______
  17. Estimate 38 − 57 by rounding each number to the nearest 10: ______
  18. Estimate 22 + 65 by rounding each number to the nearest 10: ______
  19. Estimate 29 + 57 by rounding each number to the nearest 10: ______
  20. Estimate 24 − 75 by rounding each number to the nearest 10: ______