Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 49 + 88 by rounding each number to the nearest 10: ______
- Estimate 56 + 55 by rounding each number to the nearest 10: ______
- Estimate 63 − 46 by rounding each number to the nearest 10: ______
- Estimate 31 + 87 by rounding each number to the nearest 10: ______
- Estimate 26 − 82 by rounding each number to the nearest 10: ______
- Estimate 57 + 25 by rounding each number to the nearest 10: ______
- Estimate 77 + 68 by rounding each number to the nearest 10: ______
- Estimate 35 + 79 by rounding each number to the nearest 10: ______
- Estimate 44 − 74 by rounding each number to the nearest 10: ______
- Estimate 69 + 66 by rounding each number to the nearest 10: ______
- Estimate 56 − 49 by rounding each number to the nearest 10: ______
- Estimate 40 − 72 by rounding each number to the nearest 10: ______
- Estimate 65 + 25 by rounding each number to the nearest 10: ______
- Estimate 85 − 21 by rounding each number to the nearest 10: ______
- Estimate 56 − 63 by rounding each number to the nearest 10: ______
- Estimate 44 + 61 by rounding each number to the nearest 10: ______
- Estimate 66 + 83 by rounding each number to the nearest 10: ______
- Estimate 26 + 28 by rounding each number to the nearest 10: ______
- Estimate 21 − 43 by rounding each number to the nearest 10: ______
- Estimate 66 + 25 by rounding each number to the nearest 10: ______