Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 48 + 29 by rounding each number to the nearest 10: ______
- Estimate 35 + 71 by rounding each number to the nearest 10: ______
- Estimate 84 − 34 by rounding each number to the nearest 10: ______
- Estimate 30 + 78 by rounding each number to the nearest 10: ______
- Estimate 67 + 25 by rounding each number to the nearest 10: ______
- Estimate 53 + 60 by rounding each number to the nearest 10: ______
- Estimate 81 − 39 by rounding each number to the nearest 10: ______
- Estimate 38 − 72 by rounding each number to the nearest 10: ______
- Estimate 48 − 85 by rounding each number to the nearest 10: ______
- Estimate 40 + 84 by rounding each number to the nearest 10: ______
- Estimate 65 + 37 by rounding each number to the nearest 10: ______
- Estimate 81 + 64 by rounding each number to the nearest 10: ______
- Estimate 29 − 74 by rounding each number to the nearest 10: ______
- Estimate 84 − 61 by rounding each number to the nearest 10: ______
- Estimate 74 + 87 by rounding each number to the nearest 10: ______
- Estimate 78 + 21 by rounding each number to the nearest 10: ______
- Estimate 44 + 73 by rounding each number to the nearest 10: ______
- Estimate 68 + 50 by rounding each number to the nearest 10: ______
- Estimate 80 − 22 by rounding each number to the nearest 10: ______
- Estimate 52 − 49 by rounding each number to the nearest 10: ______