Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 89 + 73 by rounding each number to the nearest 10: ______
- Estimate 36 − 80 by rounding each number to the nearest 10: ______
- Estimate 71 + 89 by rounding each number to the nearest 10: ______
- Estimate 27 − 25 by rounding each number to the nearest 10: ______
- Estimate 61 − 70 by rounding each number to the nearest 10: ______
- Estimate 81 − 28 by rounding each number to the nearest 10: ______
- Estimate 72 − 56 by rounding each number to the nearest 10: ______
- Estimate 42 − 31 by rounding each number to the nearest 10: ______
- Estimate 72 − 44 by rounding each number to the nearest 10: ______
- Estimate 84 + 58 by rounding each number to the nearest 10: ______
- Estimate 58 + 47 by rounding each number to the nearest 10: ______
- Estimate 24 − 74 by rounding each number to the nearest 10: ______
- Estimate 84 + 61 by rounding each number to the nearest 10: ______
- Estimate 61 − 73 by rounding each number to the nearest 10: ______
- Estimate 51 − 89 by rounding each number to the nearest 10: ______
- Estimate 49 + 71 by rounding each number to the nearest 10: ______
- Estimate 81 + 42 by rounding each number to the nearest 10: ______
- Estimate 89 − 83 by rounding each number to the nearest 10: ______
- Estimate 26 + 56 by rounding each number to the nearest 10: ______
- Estimate 55 − 58 by rounding each number to the nearest 10: ______