Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 77 + 55 by rounding each number to the nearest 10: ______
- Estimate 43 + 40 by rounding each number to the nearest 10: ______
- Estimate 58 + 76 by rounding each number to the nearest 10: ______
- Estimate 24 + 22 by rounding each number to the nearest 10: ______
- Estimate 84 + 61 by rounding each number to the nearest 10: ______
- Estimate 50 − 68 by rounding each number to the nearest 10: ______
- Estimate 61 + 51 by rounding each number to the nearest 10: ______
- Estimate 47 + 43 by rounding each number to the nearest 10: ______
- Estimate 40 − 70 by rounding each number to the nearest 10: ______
- Estimate 66 + 48 by rounding each number to the nearest 10: ______
- Estimate 83 + 73 by rounding each number to the nearest 10: ______
- Estimate 85 + 81 by rounding each number to the nearest 10: ______
- Estimate 48 + 22 by rounding each number to the nearest 10: ______
- Estimate 50 − 50 by rounding each number to the nearest 10: ______
- Estimate 86 + 52 by rounding each number to the nearest 10: ______
- Estimate 85 − 68 by rounding each number to the nearest 10: ______
- Estimate 40 − 86 by rounding each number to the nearest 10: ______
- Estimate 25 − 23 by rounding each number to the nearest 10: ______
- Estimate 26 − 71 by rounding each number to the nearest 10: ______
- Estimate 28 + 41 by rounding each number to the nearest 10: ______