Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 64 + 49 by rounding each number to the nearest 10: ______
- Estimate 69 − 70 by rounding each number to the nearest 10: ______
- Estimate 81 + 28 by rounding each number to the nearest 10: ______
- Estimate 31 + 28 by rounding each number to the nearest 10: ______
- Estimate 65 + 36 by rounding each number to the nearest 10: ______
- Estimate 85 + 83 by rounding each number to the nearest 10: ______
- Estimate 52 − 54 by rounding each number to the nearest 10: ______
- Estimate 34 + 41 by rounding each number to the nearest 10: ______
- Estimate 28 + 23 by rounding each number to the nearest 10: ______
- Estimate 58 + 77 by rounding each number to the nearest 10: ______
- Estimate 82 − 36 by rounding each number to the nearest 10: ______
- Estimate 48 + 65 by rounding each number to the nearest 10: ______
- Estimate 58 − 75 by rounding each number to the nearest 10: ______
- Estimate 26 − 58 by rounding each number to the nearest 10: ______
- Estimate 25 − 21 by rounding each number to the nearest 10: ______
- Estimate 82 + 83 by rounding each number to the nearest 10: ______
- Estimate 23 + 35 by rounding each number to the nearest 10: ______
- Estimate 47 + 74 by rounding each number to the nearest 10: ______
- Estimate 66 − 75 by rounding each number to the nearest 10: ______
- Estimate 69 − 68 by rounding each number to the nearest 10: ______