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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 80 − 80 by rounding each number to the nearest 10: ______
  2. Estimate 83 − 32 by rounding each number to the nearest 10: ______
  3. Estimate 60 − 33 by rounding each number to the nearest 10: ______
  4. Estimate 38 + 74 by rounding each number to the nearest 10: ______
  5. Estimate 71 − 48 by rounding each number to the nearest 10: ______
  6. Estimate 85 − 63 by rounding each number to the nearest 10: ______
  7. Estimate 62 + 88 by rounding each number to the nearest 10: ______
  8. Estimate 36 − 28 by rounding each number to the nearest 10: ______
  9. Estimate 21 − 58 by rounding each number to the nearest 10: ______
  10. Estimate 32 + 73 by rounding each number to the nearest 10: ______
  11. Estimate 34 + 30 by rounding each number to the nearest 10: ______
  12. Estimate 51 + 75 by rounding each number to the nearest 10: ______
  13. Estimate 83 − 72 by rounding each number to the nearest 10: ______
  14. Estimate 78 + 27 by rounding each number to the nearest 10: ______
  15. Estimate 33 + 34 by rounding each number to the nearest 10: ______
  16. Estimate 64 − 48 by rounding each number to the nearest 10: ______
  17. Estimate 38 + 65 by rounding each number to the nearest 10: ______
  18. Estimate 64 + 84 by rounding each number to the nearest 10: ______
  19. Estimate 72 − 46 by rounding each number to the nearest 10: ______
  20. Estimate 79 + 30 by rounding each number to the nearest 10: ______