Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 35 + 59 by rounding each number to the nearest 10: ______
- Estimate 71 − 81 by rounding each number to the nearest 10: ______
- Estimate 50 − 51 by rounding each number to the nearest 10: ______
- Estimate 73 + 71 by rounding each number to the nearest 10: ______
- Estimate 44 − 73 by rounding each number to the nearest 10: ______
- Estimate 64 + 87 by rounding each number to the nearest 10: ______
- Estimate 80 − 26 by rounding each number to the nearest 10: ______
- Estimate 71 + 42 by rounding each number to the nearest 10: ______
- Estimate 43 − 23 by rounding each number to the nearest 10: ______
- Estimate 88 − 45 by rounding each number to the nearest 10: ______
- Estimate 35 + 87 by rounding each number to the nearest 10: ______
- Estimate 65 + 40 by rounding each number to the nearest 10: ______
- Estimate 50 − 24 by rounding each number to the nearest 10: ______
- Estimate 46 − 80 by rounding each number to the nearest 10: ______
- Estimate 40 + 68 by rounding each number to the nearest 10: ______
- Estimate 66 + 27 by rounding each number to the nearest 10: ______
- Estimate 58 + 79 by rounding each number to the nearest 10: ______
- Estimate 53 − 24 by rounding each number to the nearest 10: ______
- Estimate 29 + 35 by rounding each number to the nearest 10: ______
- Estimate 30 − 80 by rounding each number to the nearest 10: ______