Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 28 − 69 by rounding each number to the nearest 10: ______
- Estimate 69 + 52 by rounding each number to the nearest 10: ______
- Estimate 80 + 66 by rounding each number to the nearest 10: ______
- Estimate 28 − 63 by rounding each number to the nearest 10: ______
- Estimate 72 + 67 by rounding each number to the nearest 10: ______
- Estimate 45 − 24 by rounding each number to the nearest 10: ______
- Estimate 36 − 81 by rounding each number to the nearest 10: ______
- Estimate 64 − 83 by rounding each number to the nearest 10: ______
- Estimate 38 − 32 by rounding each number to the nearest 10: ______
- Estimate 89 − 27 by rounding each number to the nearest 10: ______
- Estimate 56 + 56 by rounding each number to the nearest 10: ______
- Estimate 57 − 78 by rounding each number to the nearest 10: ______
- Estimate 41 + 75 by rounding each number to the nearest 10: ______
- Estimate 64 + 82 by rounding each number to the nearest 10: ______
- Estimate 25 − 32 by rounding each number to the nearest 10: ______
- Estimate 84 − 41 by rounding each number to the nearest 10: ______
- Estimate 87 + 81 by rounding each number to the nearest 10: ______
- Estimate 65 + 34 by rounding each number to the nearest 10: ______
- Estimate 61 − 53 by rounding each number to the nearest 10: ______
- Estimate 58 + 22 by rounding each number to the nearest 10: ______