Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 75 + 58 by rounding each number to the nearest 10: ______
- Estimate 38 − 81 by rounding each number to the nearest 10: ______
- Estimate 82 + 38 by rounding each number to the nearest 10: ______
- Estimate 77 + 62 by rounding each number to the nearest 10: ______
- Estimate 73 + 27 by rounding each number to the nearest 10: ______
- Estimate 21 − 42 by rounding each number to the nearest 10: ______
- Estimate 78 + 68 by rounding each number to the nearest 10: ______
- Estimate 71 + 45 by rounding each number to the nearest 10: ______
- Estimate 80 + 85 by rounding each number to the nearest 10: ______
- Estimate 42 − 38 by rounding each number to the nearest 10: ______
- Estimate 80 + 47 by rounding each number to the nearest 10: ______
- Estimate 72 + 63 by rounding each number to the nearest 10: ______
- Estimate 25 − 65 by rounding each number to the nearest 10: ______
- Estimate 45 + 43 by rounding each number to the nearest 10: ______
- Estimate 24 + 56 by rounding each number to the nearest 10: ______
- Estimate 69 − 77 by rounding each number to the nearest 10: ______
- Estimate 83 + 22 by rounding each number to the nearest 10: ______
- Estimate 32 + 25 by rounding each number to the nearest 10: ______
- Estimate 32 − 44 by rounding each number to the nearest 10: ______
- Estimate 89 + 46 by rounding each number to the nearest 10: ______