Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 84 + 45 by rounding each number to the nearest 10: ______
- Estimate 31 + 25 by rounding each number to the nearest 10: ______
- Estimate 34 + 43 by rounding each number to the nearest 10: ______
- Estimate 80 + 35 by rounding each number to the nearest 10: ______
- Estimate 54 − 70 by rounding each number to the nearest 10: ______
- Estimate 23 − 45 by rounding each number to the nearest 10: ______
- Estimate 51 + 75 by rounding each number to the nearest 10: ______
- Estimate 28 + 66 by rounding each number to the nearest 10: ______
- Estimate 27 + 38 by rounding each number to the nearest 10: ______
- Estimate 72 − 74 by rounding each number to the nearest 10: ______
- Estimate 82 − 75 by rounding each number to the nearest 10: ______
- Estimate 34 − 84 by rounding each number to the nearest 10: ______
- Estimate 29 + 68 by rounding each number to the nearest 10: ______
- Estimate 50 − 38 by rounding each number to the nearest 10: ______
- Estimate 59 + 21 by rounding each number to the nearest 10: ______
- Estimate 35 + 73 by rounding each number to the nearest 10: ______
- Estimate 62 − 59 by rounding each number to the nearest 10: ______
- Estimate 66 + 49 by rounding each number to the nearest 10: ______
- Estimate 72 − 66 by rounding each number to the nearest 10: ______
- Estimate 69 + 40 by rounding each number to the nearest 10: ______