Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 61 + 66 by rounding each number to the nearest 10: ______
- Estimate 37 + 28 by rounding each number to the nearest 10: ______
- Estimate 68 − 38 by rounding each number to the nearest 10: ______
- Estimate 53 − 25 by rounding each number to the nearest 10: ______
- Estimate 54 + 21 by rounding each number to the nearest 10: ______
- Estimate 22 + 49 by rounding each number to the nearest 10: ______
- Estimate 51 + 85 by rounding each number to the nearest 10: ______
- Estimate 51 + 63 by rounding each number to the nearest 10: ______
- Estimate 63 + 44 by rounding each number to the nearest 10: ______
- Estimate 33 + 85 by rounding each number to the nearest 10: ______
- Estimate 52 − 33 by rounding each number to the nearest 10: ______
- Estimate 76 + 49 by rounding each number to the nearest 10: ______
- Estimate 54 + 77 by rounding each number to the nearest 10: ______
- Estimate 53 − 44 by rounding each number to the nearest 10: ______
- Estimate 49 − 70 by rounding each number to the nearest 10: ______
- Estimate 38 − 34 by rounding each number to the nearest 10: ______
- Estimate 51 + 52 by rounding each number to the nearest 10: ______
- Estimate 59 − 88 by rounding each number to the nearest 10: ______
- Estimate 86 − 48 by rounding each number to the nearest 10: ______
- Estimate 81 + 73 by rounding each number to the nearest 10: ______