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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 89 + 84 by rounding each number to the nearest 10: ______
  2. Estimate 59 + 28 by rounding each number to the nearest 10: ______
  3. Estimate 43 + 35 by rounding each number to the nearest 10: ______
  4. Estimate 50 + 68 by rounding each number to the nearest 10: ______
  5. Estimate 26 + 40 by rounding each number to the nearest 10: ______
  6. Estimate 38 − 86 by rounding each number to the nearest 10: ______
  7. Estimate 66 − 88 by rounding each number to the nearest 10: ______
  8. Estimate 35 − 40 by rounding each number to the nearest 10: ______
  9. Estimate 69 + 74 by rounding each number to the nearest 10: ______
  10. Estimate 28 − 69 by rounding each number to the nearest 10: ______
  11. Estimate 34 + 31 by rounding each number to the nearest 10: ______
  12. Estimate 27 − 45 by rounding each number to the nearest 10: ______
  13. Estimate 28 + 87 by rounding each number to the nearest 10: ______
  14. Estimate 74 + 89 by rounding each number to the nearest 10: ______
  15. Estimate 25 + 49 by rounding each number to the nearest 10: ______
  16. Estimate 65 − 73 by rounding each number to the nearest 10: ______
  17. Estimate 73 − 46 by rounding each number to the nearest 10: ______
  18. Estimate 67 − 88 by rounding each number to the nearest 10: ______
  19. Estimate 79 + 84 by rounding each number to the nearest 10: ______
  20. Estimate 84 − 59 by rounding each number to the nearest 10: ______