Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 50 − 86 by rounding each number to the nearest 10: ______
- Estimate 26 − 37 by rounding each number to the nearest 10: ______
- Estimate 39 − 28 by rounding each number to the nearest 10: ______
- Estimate 49 − 89 by rounding each number to the nearest 10: ______
- Estimate 53 + 27 by rounding each number to the nearest 10: ______
- Estimate 53 − 88 by rounding each number to the nearest 10: ______
- Estimate 30 − 44 by rounding each number to the nearest 10: ______
- Estimate 31 + 86 by rounding each number to the nearest 10: ______
- Estimate 38 + 75 by rounding each number to the nearest 10: ______
- Estimate 30 + 44 by rounding each number to the nearest 10: ______
- Estimate 78 − 62 by rounding each number to the nearest 10: ______
- Estimate 65 − 84 by rounding each number to the nearest 10: ______
- Estimate 29 − 41 by rounding each number to the nearest 10: ______
- Estimate 66 + 87 by rounding each number to the nearest 10: ______
- Estimate 49 + 29 by rounding each number to the nearest 10: ______
- Estimate 26 − 45 by rounding each number to the nearest 10: ______
- Estimate 80 + 49 by rounding each number to the nearest 10: ______
- Estimate 80 + 37 by rounding each number to the nearest 10: ______
- Estimate 47 − 29 by rounding each number to the nearest 10: ______
- Estimate 73 + 78 by rounding each number to the nearest 10: ______