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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 70 + 73 by rounding each number to the nearest 10: ______
  2. Estimate 71 − 70 by rounding each number to the nearest 10: ______
  3. Estimate 45 + 41 by rounding each number to the nearest 10: ______
  4. Estimate 68 − 23 by rounding each number to the nearest 10: ______
  5. Estimate 45 − 56 by rounding each number to the nearest 10: ______
  6. Estimate 69 + 24 by rounding each number to the nearest 10: ______
  7. Estimate 24 − 69 by rounding each number to the nearest 10: ______
  8. Estimate 69 − 38 by rounding each number to the nearest 10: ______
  9. Estimate 28 + 56 by rounding each number to the nearest 10: ______
  10. Estimate 84 − 26 by rounding each number to the nearest 10: ______
  11. Estimate 21 + 28 by rounding each number to the nearest 10: ______
  12. Estimate 74 − 27 by rounding each number to the nearest 10: ______
  13. Estimate 61 + 43 by rounding each number to the nearest 10: ______
  14. Estimate 62 + 83 by rounding each number to the nearest 10: ______
  15. Estimate 39 + 28 by rounding each number to the nearest 10: ______
  16. Estimate 75 + 67 by rounding each number to the nearest 10: ______
  17. Estimate 64 − 26 by rounding each number to the nearest 10: ______
  18. Estimate 65 − 87 by rounding each number to the nearest 10: ______
  19. Estimate 26 + 43 by rounding each number to the nearest 10: ______
  20. Estimate 51 + 50 by rounding each number to the nearest 10: ______