Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 40 + 39 by rounding each number to the nearest 10: ______
- Estimate 81 + 31 by rounding each number to the nearest 10: ______
- Estimate 22 − 59 by rounding each number to the nearest 10: ______
- Estimate 30 − 82 by rounding each number to the nearest 10: ______
- Estimate 37 − 43 by rounding each number to the nearest 10: ______
- Estimate 39 + 69 by rounding each number to the nearest 10: ______
- Estimate 26 + 57 by rounding each number to the nearest 10: ______
- Estimate 47 − 40 by rounding each number to the nearest 10: ______
- Estimate 73 + 45 by rounding each number to the nearest 10: ______
- Estimate 70 − 28 by rounding each number to the nearest 10: ______
- Estimate 55 − 86 by rounding each number to the nearest 10: ______
- Estimate 39 + 83 by rounding each number to the nearest 10: ______
- Estimate 44 + 26 by rounding each number to the nearest 10: ______
- Estimate 35 − 82 by rounding each number to the nearest 10: ______
- Estimate 76 − 56 by rounding each number to the nearest 10: ______
- Estimate 73 − 57 by rounding each number to the nearest 10: ______
- Estimate 39 + 31 by rounding each number to the nearest 10: ______
- Estimate 72 − 72 by rounding each number to the nearest 10: ______
- Estimate 85 + 29 by rounding each number to the nearest 10: ______
- Estimate 50 + 64 by rounding each number to the nearest 10: ______