Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 63 − 69 by rounding each number to the nearest 10: ______
- Estimate 69 + 63 by rounding each number to the nearest 10: ______
- Estimate 39 − 86 by rounding each number to the nearest 10: ______
- Estimate 32 + 33 by rounding each number to the nearest 10: ______
- Estimate 41 + 22 by rounding each number to the nearest 10: ______
- Estimate 40 − 85 by rounding each number to the nearest 10: ______
- Estimate 55 + 42 by rounding each number to the nearest 10: ______
- Estimate 41 + 43 by rounding each number to the nearest 10: ______
- Estimate 47 − 22 by rounding each number to the nearest 10: ______
- Estimate 49 + 80 by rounding each number to the nearest 10: ______
- Estimate 21 + 50 by rounding each number to the nearest 10: ______
- Estimate 39 − 30 by rounding each number to the nearest 10: ______
- Estimate 57 + 29 by rounding each number to the nearest 10: ______
- Estimate 45 − 53 by rounding each number to the nearest 10: ______
- Estimate 31 − 51 by rounding each number to the nearest 10: ______
- Estimate 83 + 69 by rounding each number to the nearest 10: ______
- Estimate 23 + 68 by rounding each number to the nearest 10: ______
- Estimate 84 − 49 by rounding each number to the nearest 10: ______
- Estimate 22 − 28 by rounding each number to the nearest 10: ______
- Estimate 31 − 46 by rounding each number to the nearest 10: ______