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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 85 − 88 by rounding each number to the nearest 10: ______
  2. Estimate 80 + 46 by rounding each number to the nearest 10: ______
  3. Estimate 54 + 45 by rounding each number to the nearest 10: ______
  4. Estimate 48 − 89 by rounding each number to the nearest 10: ______
  5. Estimate 50 + 40 by rounding each number to the nearest 10: ______
  6. Estimate 32 − 50 by rounding each number to the nearest 10: ______
  7. Estimate 70 − 83 by rounding each number to the nearest 10: ______
  8. Estimate 52 + 35 by rounding each number to the nearest 10: ______
  9. Estimate 36 + 78 by rounding each number to the nearest 10: ______
  10. Estimate 29 + 86 by rounding each number to the nearest 10: ______
  11. Estimate 89 + 71 by rounding each number to the nearest 10: ______
  12. Estimate 74 − 82 by rounding each number to the nearest 10: ______
  13. Estimate 27 − 65 by rounding each number to the nearest 10: ______
  14. Estimate 24 + 21 by rounding each number to the nearest 10: ______
  15. Estimate 44 − 31 by rounding each number to the nearest 10: ______
  16. Estimate 56 + 66 by rounding each number to the nearest 10: ______
  17. Estimate 32 − 65 by rounding each number to the nearest 10: ______
  18. Estimate 88 + 24 by rounding each number to the nearest 10: ______
  19. Estimate 88 + 78 by rounding each number to the nearest 10: ______
  20. Estimate 56 − 42 by rounding each number to the nearest 10: ______