Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 56 + 38 by rounding each number to the nearest 10: ______
- Estimate 54 − 46 by rounding each number to the nearest 10: ______
- Estimate 64 − 39 by rounding each number to the nearest 10: ______
- Estimate 38 + 61 by rounding each number to the nearest 10: ______
- Estimate 44 − 79 by rounding each number to the nearest 10: ______
- Estimate 81 + 69 by rounding each number to the nearest 10: ______
- Estimate 43 + 89 by rounding each number to the nearest 10: ______
- Estimate 68 + 82 by rounding each number to the nearest 10: ______
- Estimate 61 + 73 by rounding each number to the nearest 10: ______
- Estimate 23 + 79 by rounding each number to the nearest 10: ______
- Estimate 69 + 52 by rounding each number to the nearest 10: ______
- Estimate 52 + 47 by rounding each number to the nearest 10: ______
- Estimate 64 − 23 by rounding each number to the nearest 10: ______
- Estimate 80 + 54 by rounding each number to the nearest 10: ______
- Estimate 83 + 35 by rounding each number to the nearest 10: ______
- Estimate 45 + 59 by rounding each number to the nearest 10: ______
- Estimate 52 + 53 by rounding each number to the nearest 10: ______
- Estimate 36 + 73 by rounding each number to the nearest 10: ______
- Estimate 30 + 75 by rounding each number to the nearest 10: ______
- Estimate 49 − 79 by rounding each number to the nearest 10: ______