Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 86 − 46 by rounding each number to the nearest 10: ______
- Estimate 66 + 82 by rounding each number to the nearest 10: ______
- Estimate 39 − 69 by rounding each number to the nearest 10: ______
- Estimate 83 + 41 by rounding each number to the nearest 10: ______
- Estimate 39 − 40 by rounding each number to the nearest 10: ______
- Estimate 84 − 47 by rounding each number to the nearest 10: ______
- Estimate 47 − 41 by rounding each number to the nearest 10: ______
- Estimate 56 − 42 by rounding each number to the nearest 10: ______
- Estimate 44 + 28 by rounding each number to the nearest 10: ______
- Estimate 28 + 64 by rounding each number to the nearest 10: ______
- Estimate 28 − 56 by rounding each number to the nearest 10: ______
- Estimate 22 − 53 by rounding each number to the nearest 10: ______
- Estimate 40 − 62 by rounding each number to the nearest 10: ______
- Estimate 68 − 77 by rounding each number to the nearest 10: ______
- Estimate 59 + 30 by rounding each number to the nearest 10: ______
- Estimate 78 + 41 by rounding each number to the nearest 10: ______
- Estimate 73 − 58 by rounding each number to the nearest 10: ______
- Estimate 70 + 77 by rounding each number to the nearest 10: ______
- Estimate 37 + 83 by rounding each number to the nearest 10: ______
- Estimate 60 + 83 by rounding each number to the nearest 10: ______