Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 32 + 86 by rounding each number to the nearest 10: ______
- Estimate 84 + 89 by rounding each number to the nearest 10: ______
- Estimate 82 − 21 by rounding each number to the nearest 10: ______
- Estimate 45 + 68 by rounding each number to the nearest 10: ______
- Estimate 26 + 86 by rounding each number to the nearest 10: ______
- Estimate 81 − 29 by rounding each number to the nearest 10: ______
- Estimate 38 + 46 by rounding each number to the nearest 10: ______
- Estimate 61 + 48 by rounding each number to the nearest 10: ______
- Estimate 39 − 73 by rounding each number to the nearest 10: ______
- Estimate 30 + 75 by rounding each number to the nearest 10: ______
- Estimate 40 − 57 by rounding each number to the nearest 10: ______
- Estimate 51 + 46 by rounding each number to the nearest 10: ______
- Estimate 38 + 76 by rounding each number to the nearest 10: ______
- Estimate 29 − 73 by rounding each number to the nearest 10: ______
- Estimate 59 + 49 by rounding each number to the nearest 10: ______
- Estimate 77 − 80 by rounding each number to the nearest 10: ______
- Estimate 70 − 74 by rounding each number to the nearest 10: ______
- Estimate 70 + 67 by rounding each number to the nearest 10: ______
- Estimate 29 + 40 by rounding each number to the nearest 10: ______
- Estimate 46 − 67 by rounding each number to the nearest 10: ______