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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 43 − 39 by rounding each number to the nearest 10: ______
  2. Estimate 75 − 53 by rounding each number to the nearest 10: ______
  3. Estimate 32 − 45 by rounding each number to the nearest 10: ______
  4. Estimate 48 + 70 by rounding each number to the nearest 10: ______
  5. Estimate 70 − 65 by rounding each number to the nearest 10: ______
  6. Estimate 26 − 21 by rounding each number to the nearest 10: ______
  7. Estimate 49 + 72 by rounding each number to the nearest 10: ______
  8. Estimate 25 + 85 by rounding each number to the nearest 10: ______
  9. Estimate 73 + 44 by rounding each number to the nearest 10: ______
  10. Estimate 47 + 65 by rounding each number to the nearest 10: ______
  11. Estimate 38 + 68 by rounding each number to the nearest 10: ______
  12. Estimate 24 − 51 by rounding each number to the nearest 10: ______
  13. Estimate 50 − 54 by rounding each number to the nearest 10: ______
  14. Estimate 31 − 77 by rounding each number to the nearest 10: ______
  15. Estimate 48 + 68 by rounding each number to the nearest 10: ______
  16. Estimate 88 + 42 by rounding each number to the nearest 10: ______
  17. Estimate 84 − 67 by rounding each number to the nearest 10: ______
  18. Estimate 75 − 56 by rounding each number to the nearest 10: ______
  19. Estimate 54 + 88 by rounding each number to the nearest 10: ______
  20. Estimate 85 − 76 by rounding each number to the nearest 10: ______