Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 66 + 46 by rounding each number to the nearest 10: ______
- Estimate 79 − 73 by rounding each number to the nearest 10: ______
- Estimate 21 + 35 by rounding each number to the nearest 10: ______
- Estimate 83 − 29 by rounding each number to the nearest 10: ______
- Estimate 75 − 29 by rounding each number to the nearest 10: ______
- Estimate 53 − 88 by rounding each number to the nearest 10: ______
- Estimate 59 + 38 by rounding each number to the nearest 10: ______
- Estimate 82 + 61 by rounding each number to the nearest 10: ______
- Estimate 30 + 74 by rounding each number to the nearest 10: ______
- Estimate 83 − 39 by rounding each number to the nearest 10: ______
- Estimate 59 + 66 by rounding each number to the nearest 10: ______
- Estimate 57 + 51 by rounding each number to the nearest 10: ______
- Estimate 86 − 64 by rounding each number to the nearest 10: ______
- Estimate 28 + 74 by rounding each number to the nearest 10: ______
- Estimate 51 + 46 by rounding each number to the nearest 10: ______
- Estimate 71 + 80 by rounding each number to the nearest 10: ______
- Estimate 42 + 29 by rounding each number to the nearest 10: ______
- Estimate 69 + 83 by rounding each number to the nearest 10: ______
- Estimate 49 + 32 by rounding each number to the nearest 10: ______
- Estimate 40 + 29 by rounding each number to the nearest 10: ______