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Estimation Worksheet

Recommended for 2nd Grade — 5th Grade

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Estimation Worksheet

Name: ____________________Date: ____________

Instructions: Estimating sums, differences, and products by rounding and compatible numbers.

20 problems

  1. Estimate 26 + 79 by rounding each number to the nearest 10: ______
  2. Estimate 66 − 57 by rounding each number to the nearest 10: ______
  3. Estimate 70 − 42 by rounding each number to the nearest 10: ______
  4. Estimate 56 + 37 by rounding each number to the nearest 10: ______
  5. Estimate 27 + 51 by rounding each number to the nearest 10: ______
  6. Estimate 60 + 41 by rounding each number to the nearest 10: ______
  7. Estimate 59 − 25 by rounding each number to the nearest 10: ______
  8. Estimate 45 + 61 by rounding each number to the nearest 10: ______
  9. Estimate 69 − 51 by rounding each number to the nearest 10: ______
  10. Estimate 34 + 55 by rounding each number to the nearest 10: ______
  11. Estimate 69 + 57 by rounding each number to the nearest 10: ______
  12. Estimate 71 − 63 by rounding each number to the nearest 10: ______
  13. Estimate 69 + 61 by rounding each number to the nearest 10: ______
  14. Estimate 70 + 22 by rounding each number to the nearest 10: ______
  15. Estimate 67 − 41 by rounding each number to the nearest 10: ______
  16. Estimate 46 + 64 by rounding each number to the nearest 10: ______
  17. Estimate 67 + 27 by rounding each number to the nearest 10: ______
  18. Estimate 59 − 25 by rounding each number to the nearest 10: ______
  19. Estimate 88 − 31 by rounding each number to the nearest 10: ______
  20. Estimate 62 − 36 by rounding each number to the nearest 10: ______