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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 84 − 44 by rounding each number to the nearest 10: ______
  2. Estimate 40 − 70 by rounding each number to the nearest 10: ______
  3. Estimate 30 − 60 by rounding each number to the nearest 10: ______
  4. Estimate 43 − 49 by rounding each number to the nearest 10: ______
  5. Estimate 40 + 51 by rounding each number to the nearest 10: ______
  6. Estimate 42 + 57 by rounding each number to the nearest 10: ______
  7. Estimate 23 − 62 by rounding each number to the nearest 10: ______
  8. Estimate 47 + 58 by rounding each number to the nearest 10: ______
  9. Estimate 82 − 56 by rounding each number to the nearest 10: ______
  10. Estimate 23 − 37 by rounding each number to the nearest 10: ______
  11. Estimate 89 + 28 by rounding each number to the nearest 10: ______
  12. Estimate 76 + 47 by rounding each number to the nearest 10: ______
  13. Estimate 43 − 40 by rounding each number to the nearest 10: ______
  14. Estimate 60 + 75 by rounding each number to the nearest 10: ______
  15. Estimate 80 − 74 by rounding each number to the nearest 10: ______
  16. Estimate 31 − 88 by rounding each number to the nearest 10: ______
  17. Estimate 41 − 75 by rounding each number to the nearest 10: ______
  18. Estimate 64 + 81 by rounding each number to the nearest 10: ______
  19. Estimate 85 − 63 by rounding each number to the nearest 10: ______
  20. Estimate 52 + 74 by rounding each number to the nearest 10: ______