Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 22 − 87 by rounding each number to the nearest 10: ______
- Estimate 50 − 30 by rounding each number to the nearest 10: ______
- Estimate 29 − 85 by rounding each number to the nearest 10: ______
- Estimate 59 + 65 by rounding each number to the nearest 10: ______
- Estimate 82 − 25 by rounding each number to the nearest 10: ______
- Estimate 31 − 28 by rounding each number to the nearest 10: ______
- Estimate 21 − 80 by rounding each number to the nearest 10: ______
- Estimate 84 − 64 by rounding each number to the nearest 10: ______
- Estimate 60 − 38 by rounding each number to the nearest 10: ______
- Estimate 37 + 79 by rounding each number to the nearest 10: ______
- Estimate 79 + 73 by rounding each number to the nearest 10: ______
- Estimate 62 + 45 by rounding each number to the nearest 10: ______
- Estimate 71 − 25 by rounding each number to the nearest 10: ______
- Estimate 40 + 38 by rounding each number to the nearest 10: ______
- Estimate 70 + 70 by rounding each number to the nearest 10: ______
- Estimate 32 − 52 by rounding each number to the nearest 10: ______
- Estimate 21 + 71 by rounding each number to the nearest 10: ______
- Estimate 63 − 79 by rounding each number to the nearest 10: ______
- Estimate 31 − 80 by rounding each number to the nearest 10: ______
- Estimate 69 + 48 by rounding each number to the nearest 10: ______