Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 25 − 35 by rounding each number to the nearest 10: ______
- Estimate 36 + 28 by rounding each number to the nearest 10: ______
- Estimate 86 − 39 by rounding each number to the nearest 10: ______
- Estimate 85 + 48 by rounding each number to the nearest 10: ______
- Estimate 81 + 71 by rounding each number to the nearest 10: ______
- Estimate 34 − 41 by rounding each number to the nearest 10: ______
- Estimate 81 + 65 by rounding each number to the nearest 10: ______
- Estimate 28 + 60 by rounding each number to the nearest 10: ______
- Estimate 50 + 40 by rounding each number to the nearest 10: ______
- Estimate 36 + 59 by rounding each number to the nearest 10: ______
- Estimate 59 + 21 by rounding each number to the nearest 10: ______
- Estimate 87 + 63 by rounding each number to the nearest 10: ______
- Estimate 80 + 62 by rounding each number to the nearest 10: ______
- Estimate 62 − 56 by rounding each number to the nearest 10: ______
- Estimate 22 − 41 by rounding each number to the nearest 10: ______
- Estimate 30 − 40 by rounding each number to the nearest 10: ______
- Estimate 23 − 86 by rounding each number to the nearest 10: ______
- Estimate 56 − 62 by rounding each number to the nearest 10: ______
- Estimate 68 − 48 by rounding each number to the nearest 10: ______
- Estimate 63 − 76 by rounding each number to the nearest 10: ______