Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 35 + 85 by rounding each number to the nearest 10: ______
- Estimate 79 + 39 by rounding each number to the nearest 10: ______
- Estimate 81 − 34 by rounding each number to the nearest 10: ______
- Estimate 53 + 79 by rounding each number to the nearest 10: ______
- Estimate 53 − 41 by rounding each number to the nearest 10: ______
- Estimate 28 + 75 by rounding each number to the nearest 10: ______
- Estimate 52 − 71 by rounding each number to the nearest 10: ______
- Estimate 23 + 22 by rounding each number to the nearest 10: ______
- Estimate 47 + 25 by rounding each number to the nearest 10: ______
- Estimate 71 + 72 by rounding each number to the nearest 10: ______
- Estimate 29 + 66 by rounding each number to the nearest 10: ______
- Estimate 74 + 70 by rounding each number to the nearest 10: ______
- Estimate 29 + 64 by rounding each number to the nearest 10: ______
- Estimate 23 − 38 by rounding each number to the nearest 10: ______
- Estimate 65 − 32 by rounding each number to the nearest 10: ______
- Estimate 52 − 79 by rounding each number to the nearest 10: ______
- Estimate 68 − 21 by rounding each number to the nearest 10: ______
- Estimate 70 + 39 by rounding each number to the nearest 10: ______
- Estimate 83 + 73 by rounding each number to the nearest 10: ______
- Estimate 86 + 65 by rounding each number to the nearest 10: ______