Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 87 + 50 by rounding each number to the nearest 10: ______
- Estimate 86 + 86 by rounding each number to the nearest 10: ______
- Estimate 24 + 39 by rounding each number to the nearest 10: ______
- Estimate 68 − 82 by rounding each number to the nearest 10: ______
- Estimate 32 + 79 by rounding each number to the nearest 10: ______
- Estimate 49 − 27 by rounding each number to the nearest 10: ______
- Estimate 68 − 81 by rounding each number to the nearest 10: ______
- Estimate 33 − 24 by rounding each number to the nearest 10: ______
- Estimate 46 − 24 by rounding each number to the nearest 10: ______
- Estimate 70 − 84 by rounding each number to the nearest 10: ______
- Estimate 41 − 52 by rounding each number to the nearest 10: ______
- Estimate 76 + 68 by rounding each number to the nearest 10: ______
- Estimate 57 + 39 by rounding each number to the nearest 10: ______
- Estimate 30 + 89 by rounding each number to the nearest 10: ______
- Estimate 37 + 67 by rounding each number to the nearest 10: ______
- Estimate 28 − 27 by rounding each number to the nearest 10: ______
- Estimate 26 − 61 by rounding each number to the nearest 10: ______
- Estimate 52 + 38 by rounding each number to the nearest 10: ______
- Estimate 51 + 66 by rounding each number to the nearest 10: ______
- Estimate 64 − 66 by rounding each number to the nearest 10: ______