Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 29 + 25 by rounding each number to the nearest 10: ______
- Estimate 89 + 26 by rounding each number to the nearest 10: ______
- Estimate 33 + 27 by rounding each number to the nearest 10: ______
- Estimate 82 + 53 by rounding each number to the nearest 10: ______
- Estimate 26 − 70 by rounding each number to the nearest 10: ______
- Estimate 36 + 56 by rounding each number to the nearest 10: ______
- Estimate 86 + 36 by rounding each number to the nearest 10: ______
- Estimate 35 − 72 by rounding each number to the nearest 10: ______
- Estimate 47 + 40 by rounding each number to the nearest 10: ______
- Estimate 74 + 39 by rounding each number to the nearest 10: ______
- Estimate 27 − 21 by rounding each number to the nearest 10: ______
- Estimate 86 − 84 by rounding each number to the nearest 10: ______
- Estimate 31 + 74 by rounding each number to the nearest 10: ______
- Estimate 71 + 63 by rounding each number to the nearest 10: ______
- Estimate 34 + 45 by rounding each number to the nearest 10: ______
- Estimate 62 + 59 by rounding each number to the nearest 10: ______
- Estimate 25 − 52 by rounding each number to the nearest 10: ______
- Estimate 71 + 66 by rounding each number to the nearest 10: ______
- Estimate 51 − 75 by rounding each number to the nearest 10: ______
- Estimate 81 − 43 by rounding each number to the nearest 10: ______