Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 67 − 22 by rounding each number to the nearest 10: ______
- Estimate 45 + 54 by rounding each number to the nearest 10: ______
- Estimate 60 − 35 by rounding each number to the nearest 10: ______
- Estimate 34 − 34 by rounding each number to the nearest 10: ______
- Estimate 48 − 41 by rounding each number to the nearest 10: ______
- Estimate 51 − 87 by rounding each number to the nearest 10: ______
- Estimate 64 + 69 by rounding each number to the nearest 10: ______
- Estimate 45 − 77 by rounding each number to the nearest 10: ______
- Estimate 28 − 45 by rounding each number to the nearest 10: ______
- Estimate 71 + 67 by rounding each number to the nearest 10: ______
- Estimate 29 + 35 by rounding each number to the nearest 10: ______
- Estimate 66 − 75 by rounding each number to the nearest 10: ______
- Estimate 78 − 37 by rounding each number to the nearest 10: ______
- Estimate 39 − 70 by rounding each number to the nearest 10: ______
- Estimate 26 + 59 by rounding each number to the nearest 10: ______
- Estimate 64 + 46 by rounding each number to the nearest 10: ______
- Estimate 66 + 77 by rounding each number to the nearest 10: ______
- Estimate 50 + 80 by rounding each number to the nearest 10: ______
- Estimate 48 − 40 by rounding each number to the nearest 10: ______
- Estimate 27 + 56 by rounding each number to the nearest 10: ______