Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 61 + 27 by rounding each number to the nearest 10: ______
- Estimate 67 + 50 by rounding each number to the nearest 10: ______
- Estimate 53 + 86 by rounding each number to the nearest 10: ______
- Estimate 81 + 53 by rounding each number to the nearest 10: ______
- Estimate 39 − 56 by rounding each number to the nearest 10: ______
- Estimate 35 + 49 by rounding each number to the nearest 10: ______
- Estimate 42 + 88 by rounding each number to the nearest 10: ______
- Estimate 49 − 39 by rounding each number to the nearest 10: ______
- Estimate 28 − 89 by rounding each number to the nearest 10: ______
- Estimate 85 − 55 by rounding each number to the nearest 10: ______
- Estimate 83 − 81 by rounding each number to the nearest 10: ______
- Estimate 63 + 73 by rounding each number to the nearest 10: ______
- Estimate 86 + 86 by rounding each number to the nearest 10: ______
- Estimate 38 + 66 by rounding each number to the nearest 10: ______
- Estimate 41 − 53 by rounding each number to the nearest 10: ______
- Estimate 81 − 39 by rounding each number to the nearest 10: ______
- Estimate 26 + 65 by rounding each number to the nearest 10: ______
- Estimate 70 + 46 by rounding each number to the nearest 10: ______
- Estimate 59 − 29 by rounding each number to the nearest 10: ______
- Estimate 62 + 40 by rounding each number to the nearest 10: ______