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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 48 + 38 by rounding each number to the nearest 10: ______
  2. Estimate 75 + 72 by rounding each number to the nearest 10: ______
  3. Estimate 21 + 28 by rounding each number to the nearest 10: ______
  4. Estimate 25 + 64 by rounding each number to the nearest 10: ______
  5. Estimate 43 − 54 by rounding each number to the nearest 10: ______
  6. Estimate 69 + 64 by rounding each number to the nearest 10: ______
  7. Estimate 85 + 88 by rounding each number to the nearest 10: ______
  8. Estimate 87 − 73 by rounding each number to the nearest 10: ______
  9. Estimate 78 − 39 by rounding each number to the nearest 10: ______
  10. Estimate 47 − 56 by rounding each number to the nearest 10: ______
  11. Estimate 40 + 61 by rounding each number to the nearest 10: ______
  12. Estimate 22 + 58 by rounding each number to the nearest 10: ______
  13. Estimate 69 − 58 by rounding each number to the nearest 10: ______
  14. Estimate 26 + 77 by rounding each number to the nearest 10: ______
  15. Estimate 59 − 29 by rounding each number to the nearest 10: ______
  16. Estimate 55 − 34 by rounding each number to the nearest 10: ______
  17. Estimate 46 − 26 by rounding each number to the nearest 10: ______
  18. Estimate 52 + 84 by rounding each number to the nearest 10: ______
  19. Estimate 71 − 51 by rounding each number to the nearest 10: ______
  20. Estimate 59 + 45 by rounding each number to the nearest 10: ______