Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 72 − 38 by rounding each number to the nearest 10: ______
- Estimate 46 + 64 by rounding each number to the nearest 10: ______
- Estimate 27 − 64 by rounding each number to the nearest 10: ______
- Estimate 28 − 50 by rounding each number to the nearest 10: ______
- Estimate 25 − 49 by rounding each number to the nearest 10: ______
- Estimate 21 − 35 by rounding each number to the nearest 10: ______
- Estimate 80 + 73 by rounding each number to the nearest 10: ______
- Estimate 40 + 83 by rounding each number to the nearest 10: ______
- Estimate 56 + 45 by rounding each number to the nearest 10: ______
- Estimate 56 + 61 by rounding each number to the nearest 10: ______
- Estimate 39 + 55 by rounding each number to the nearest 10: ______
- Estimate 74 + 53 by rounding each number to the nearest 10: ______
- Estimate 79 − 82 by rounding each number to the nearest 10: ______
- Estimate 51 + 38 by rounding each number to the nearest 10: ______
- Estimate 67 − 60 by rounding each number to the nearest 10: ______
- Estimate 67 + 32 by rounding each number to the nearest 10: ______
- Estimate 70 + 79 by rounding each number to the nearest 10: ______
- Estimate 71 + 80 by rounding each number to the nearest 10: ______
- Estimate 40 + 46 by rounding each number to the nearest 10: ______
- Estimate 63 − 80 by rounding each number to the nearest 10: ______