Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 55 − 36 by rounding each number to the nearest 10: ______
- Estimate 28 + 66 by rounding each number to the nearest 10: ______
- Estimate 85 + 62 by rounding each number to the nearest 10: ______
- Estimate 78 + 66 by rounding each number to the nearest 10: ______
- Estimate 26 − 64 by rounding each number to the nearest 10: ______
- Estimate 54 + 34 by rounding each number to the nearest 10: ______
- Estimate 27 + 63 by rounding each number to the nearest 10: ______
- Estimate 87 + 50 by rounding each number to the nearest 10: ______
- Estimate 84 − 25 by rounding each number to the nearest 10: ______
- Estimate 62 + 84 by rounding each number to the nearest 10: ______
- Estimate 31 − 59 by rounding each number to the nearest 10: ______
- Estimate 55 − 21 by rounding each number to the nearest 10: ______
- Estimate 82 + 51 by rounding each number to the nearest 10: ______
- Estimate 51 − 50 by rounding each number to the nearest 10: ______
- Estimate 67 + 82 by rounding each number to the nearest 10: ______
- Estimate 80 + 79 by rounding each number to the nearest 10: ______
- Estimate 82 − 38 by rounding each number to the nearest 10: ______
- Estimate 65 − 61 by rounding each number to the nearest 10: ______
- Estimate 30 − 27 by rounding each number to the nearest 10: ______
- Estimate 23 + 35 by rounding each number to the nearest 10: ______