Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 75 + 60 by rounding each number to the nearest 10: ______
- Estimate 80 − 39 by rounding each number to the nearest 10: ______
- Estimate 87 − 52 by rounding each number to the nearest 10: ______
- Estimate 36 − 89 by rounding each number to the nearest 10: ______
- Estimate 45 + 27 by rounding each number to the nearest 10: ______
- Estimate 79 − 78 by rounding each number to the nearest 10: ______
- Estimate 42 + 60 by rounding each number to the nearest 10: ______
- Estimate 34 − 39 by rounding each number to the nearest 10: ______
- Estimate 39 + 75 by rounding each number to the nearest 10: ______
- Estimate 27 + 63 by rounding each number to the nearest 10: ______
- Estimate 36 − 65 by rounding each number to the nearest 10: ______
- Estimate 73 + 65 by rounding each number to the nearest 10: ______
- Estimate 52 − 59 by rounding each number to the nearest 10: ______
- Estimate 65 + 89 by rounding each number to the nearest 10: ______
- Estimate 23 − 50 by rounding each number to the nearest 10: ______
- Estimate 42 + 78 by rounding each number to the nearest 10: ______
- Estimate 37 + 23 by rounding each number to the nearest 10: ______
- Estimate 46 − 63 by rounding each number to the nearest 10: ______
- Estimate 55 − 81 by rounding each number to the nearest 10: ______
- Estimate 55 − 76 by rounding each number to the nearest 10: ______