Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 85 − 49 by rounding each number to the nearest 10: ______
- Estimate 22 − 29 by rounding each number to the nearest 10: ______
- Estimate 68 − 49 by rounding each number to the nearest 10: ______
- Estimate 51 + 45 by rounding each number to the nearest 10: ______
- Estimate 60 − 28 by rounding each number to the nearest 10: ______
- Estimate 63 + 72 by rounding each number to the nearest 10: ______
- Estimate 39 + 52 by rounding each number to the nearest 10: ______
- Estimate 50 + 67 by rounding each number to the nearest 10: ______
- Estimate 41 + 26 by rounding each number to the nearest 10: ______
- Estimate 81 + 59 by rounding each number to the nearest 10: ______
- Estimate 45 − 40 by rounding each number to the nearest 10: ______
- Estimate 71 + 33 by rounding each number to the nearest 10: ______
- Estimate 44 − 75 by rounding each number to the nearest 10: ______
- Estimate 79 − 88 by rounding each number to the nearest 10: ______
- Estimate 89 + 60 by rounding each number to the nearest 10: ______
- Estimate 72 − 50 by rounding each number to the nearest 10: ______
- Estimate 74 − 85 by rounding each number to the nearest 10: ______
- Estimate 33 − 74 by rounding each number to the nearest 10: ______
- Estimate 44 − 29 by rounding each number to the nearest 10: ______
- Estimate 83 − 28 by rounding each number to the nearest 10: ______