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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 67 − 38 by rounding each number to the nearest 10: ______
  2. Estimate 64 + 39 by rounding each number to the nearest 10: ______
  3. Estimate 35 − 32 by rounding each number to the nearest 10: ______
  4. Estimate 37 + 43 by rounding each number to the nearest 10: ______
  5. Estimate 83 − 29 by rounding each number to the nearest 10: ______
  6. Estimate 28 − 45 by rounding each number to the nearest 10: ______
  7. Estimate 60 + 68 by rounding each number to the nearest 10: ______
  8. Estimate 45 + 27 by rounding each number to the nearest 10: ______
  9. Estimate 75 + 55 by rounding each number to the nearest 10: ______
  10. Estimate 57 + 33 by rounding each number to the nearest 10: ______
  11. Estimate 62 − 60 by rounding each number to the nearest 10: ______
  12. Estimate 80 + 70 by rounding each number to the nearest 10: ______
  13. Estimate 63 − 55 by rounding each number to the nearest 10: ______
  14. Estimate 45 + 56 by rounding each number to the nearest 10: ______
  15. Estimate 46 + 39 by rounding each number to the nearest 10: ______
  16. Estimate 62 − 29 by rounding each number to the nearest 10: ______
  17. Estimate 84 + 27 by rounding each number to the nearest 10: ______
  18. Estimate 75 + 57 by rounding each number to the nearest 10: ______
  19. Estimate 27 − 51 by rounding each number to the nearest 10: ______
  20. Estimate 23 + 53 by rounding each number to the nearest 10: ______