Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 41 + 52 by rounding each number to the nearest 10: ______
- Estimate 45 − 70 by rounding each number to the nearest 10: ______
- Estimate 52 + 40 by rounding each number to the nearest 10: ______
- Estimate 56 + 70 by rounding each number to the nearest 10: ______
- Estimate 26 + 74 by rounding each number to the nearest 10: ______
- Estimate 58 − 36 by rounding each number to the nearest 10: ______
- Estimate 41 + 49 by rounding each number to the nearest 10: ______
- Estimate 38 − 70 by rounding each number to the nearest 10: ______
- Estimate 71 − 50 by rounding each number to the nearest 10: ______
- Estimate 85 + 87 by rounding each number to the nearest 10: ______
- Estimate 81 − 50 by rounding each number to the nearest 10: ______
- Estimate 28 + 27 by rounding each number to the nearest 10: ______
- Estimate 40 − 44 by rounding each number to the nearest 10: ______
- Estimate 58 − 87 by rounding each number to the nearest 10: ______
- Estimate 29 − 39 by rounding each number to the nearest 10: ______
- Estimate 43 − 80 by rounding each number to the nearest 10: ______
- Estimate 55 − 46 by rounding each number to the nearest 10: ______
- Estimate 55 + 34 by rounding each number to the nearest 10: ______
- Estimate 85 + 68 by rounding each number to the nearest 10: ______
- Estimate 55 − 53 by rounding each number to the nearest 10: ______