Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 71 − 34 by rounding each number to the nearest 10: ______
- Estimate 72 − 23 by rounding each number to the nearest 10: ______
- Estimate 51 + 25 by rounding each number to the nearest 10: ______
- Estimate 50 − 73 by rounding each number to the nearest 10: ______
- Estimate 34 − 88 by rounding each number to the nearest 10: ______
- Estimate 28 − 40 by rounding each number to the nearest 10: ______
- Estimate 39 + 45 by rounding each number to the nearest 10: ______
- Estimate 33 − 35 by rounding each number to the nearest 10: ______
- Estimate 75 + 84 by rounding each number to the nearest 10: ______
- Estimate 21 − 43 by rounding each number to the nearest 10: ______
- Estimate 70 − 55 by rounding each number to the nearest 10: ______
- Estimate 53 + 85 by rounding each number to the nearest 10: ______
- Estimate 85 − 78 by rounding each number to the nearest 10: ______
- Estimate 46 + 48 by rounding each number to the nearest 10: ______
- Estimate 40 − 48 by rounding each number to the nearest 10: ______
- Estimate 60 − 57 by rounding each number to the nearest 10: ______
- Estimate 81 + 79 by rounding each number to the nearest 10: ______
- Estimate 68 − 63 by rounding each number to the nearest 10: ______
- Estimate 33 + 35 by rounding each number to the nearest 10: ______
- Estimate 69 − 62 by rounding each number to the nearest 10: ______