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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 69 − 68 by rounding each number to the nearest 10: ______
  2. Estimate 85 + 78 by rounding each number to the nearest 10: ______
  3. Estimate 74 − 53 by rounding each number to the nearest 10: ______
  4. Estimate 88 − 83 by rounding each number to the nearest 10: ______
  5. Estimate 29 + 87 by rounding each number to the nearest 10: ______
  6. Estimate 69 + 24 by rounding each number to the nearest 10: ______
  7. Estimate 78 + 27 by rounding each number to the nearest 10: ______
  8. Estimate 64 − 79 by rounding each number to the nearest 10: ______
  9. Estimate 40 + 40 by rounding each number to the nearest 10: ______
  10. Estimate 62 − 74 by rounding each number to the nearest 10: ______
  11. Estimate 63 + 74 by rounding each number to the nearest 10: ______
  12. Estimate 82 + 22 by rounding each number to the nearest 10: ______
  13. Estimate 33 − 23 by rounding each number to the nearest 10: ______
  14. Estimate 65 + 42 by rounding each number to the nearest 10: ______
  15. Estimate 54 − 47 by rounding each number to the nearest 10: ______
  16. Estimate 35 + 76 by rounding each number to the nearest 10: ______
  17. Estimate 46 − 48 by rounding each number to the nearest 10: ______
  18. Estimate 29 − 74 by rounding each number to the nearest 10: ______
  19. Estimate 62 + 39 by rounding each number to the nearest 10: ______
  20. Estimate 43 + 84 by rounding each number to the nearest 10: ______