Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 67 − 45 by rounding each number to the nearest 10: ______
- Estimate 31 − 39 by rounding each number to the nearest 10: ______
- Estimate 44 + 67 by rounding each number to the nearest 10: ______
- Estimate 22 + 45 by rounding each number to the nearest 10: ______
- Estimate 65 − 80 by rounding each number to the nearest 10: ______
- Estimate 53 + 77 by rounding each number to the nearest 10: ______
- Estimate 28 + 35 by rounding each number to the nearest 10: ______
- Estimate 45 − 69 by rounding each number to the nearest 10: ______
- Estimate 51 + 59 by rounding each number to the nearest 10: ______
- Estimate 48 + 76 by rounding each number to the nearest 10: ______
- Estimate 81 − 33 by rounding each number to the nearest 10: ______
- Estimate 44 + 36 by rounding each number to the nearest 10: ______
- Estimate 29 − 68 by rounding each number to the nearest 10: ______
- Estimate 89 − 47 by rounding each number to the nearest 10: ______
- Estimate 39 − 33 by rounding each number to the nearest 10: ______
- Estimate 64 − 55 by rounding each number to the nearest 10: ______
- Estimate 75 + 40 by rounding each number to the nearest 10: ______
- Estimate 78 − 39 by rounding each number to the nearest 10: ______
- Estimate 52 − 66 by rounding each number to the nearest 10: ______
- Estimate 78 − 49 by rounding each number to the nearest 10: ______