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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 83 − 21 by rounding each number to the nearest 10: ______
  2. Estimate 60 − 87 by rounding each number to the nearest 10: ______
  3. Estimate 36 + 86 by rounding each number to the nearest 10: ______
  4. Estimate 78 − 77 by rounding each number to the nearest 10: ______
  5. Estimate 68 + 57 by rounding each number to the nearest 10: ______
  6. Estimate 89 + 72 by rounding each number to the nearest 10: ______
  7. Estimate 74 + 23 by rounding each number to the nearest 10: ______
  8. Estimate 31 + 72 by rounding each number to the nearest 10: ______
  9. Estimate 44 − 31 by rounding each number to the nearest 10: ______
  10. Estimate 52 − 32 by rounding each number to the nearest 10: ______
  11. Estimate 56 + 28 by rounding each number to the nearest 10: ______
  12. Estimate 37 − 83 by rounding each number to the nearest 10: ______
  13. Estimate 33 + 79 by rounding each number to the nearest 10: ______
  14. Estimate 23 + 33 by rounding each number to the nearest 10: ______
  15. Estimate 79 + 22 by rounding each number to the nearest 10: ______
  16. Estimate 61 + 41 by rounding each number to the nearest 10: ______
  17. Estimate 32 + 67 by rounding each number to the nearest 10: ______
  18. Estimate 21 + 68 by rounding each number to the nearest 10: ______
  19. Estimate 88 + 35 by rounding each number to the nearest 10: ______
  20. Estimate 32 − 56 by rounding each number to the nearest 10: ______