Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 36 + 24 by rounding each number to the nearest 10: ______
- Estimate 39 − 41 by rounding each number to the nearest 10: ______
- Estimate 65 + 40 by rounding each number to the nearest 10: ______
- Estimate 60 + 51 by rounding each number to the nearest 10: ______
- Estimate 73 + 63 by rounding each number to the nearest 10: ______
- Estimate 49 − 78 by rounding each number to the nearest 10: ______
- Estimate 21 − 84 by rounding each number to the nearest 10: ______
- Estimate 22 + 81 by rounding each number to the nearest 10: ______
- Estimate 87 − 44 by rounding each number to the nearest 10: ______
- Estimate 67 + 66 by rounding each number to the nearest 10: ______
- Estimate 81 + 57 by rounding each number to the nearest 10: ______
- Estimate 25 + 35 by rounding each number to the nearest 10: ______
- Estimate 32 − 59 by rounding each number to the nearest 10: ______
- Estimate 30 − 85 by rounding each number to the nearest 10: ______
- Estimate 79 − 48 by rounding each number to the nearest 10: ______
- Estimate 26 + 32 by rounding each number to the nearest 10: ______
- Estimate 61 − 30 by rounding each number to the nearest 10: ______
- Estimate 84 + 22 by rounding each number to the nearest 10: ______
- Estimate 50 + 88 by rounding each number to the nearest 10: ______
- Estimate 49 − 55 by rounding each number to the nearest 10: ______