Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 61 + 61 by rounding each number to the nearest 10: ______
- Estimate 51 + 52 by rounding each number to the nearest 10: ______
- Estimate 26 + 83 by rounding each number to the nearest 10: ______
- Estimate 63 − 43 by rounding each number to the nearest 10: ______
- Estimate 29 − 26 by rounding each number to the nearest 10: ______
- Estimate 53 + 76 by rounding each number to the nearest 10: ______
- Estimate 77 + 59 by rounding each number to the nearest 10: ______
- Estimate 50 − 21 by rounding each number to the nearest 10: ______
- Estimate 51 − 35 by rounding each number to the nearest 10: ______
- Estimate 30 − 41 by rounding each number to the nearest 10: ______
- Estimate 58 − 57 by rounding each number to the nearest 10: ______
- Estimate 35 − 85 by rounding each number to the nearest 10: ______
- Estimate 88 + 54 by rounding each number to the nearest 10: ______
- Estimate 25 + 39 by rounding each number to the nearest 10: ______
- Estimate 71 + 75 by rounding each number to the nearest 10: ______
- Estimate 53 + 81 by rounding each number to the nearest 10: ______
- Estimate 77 − 71 by rounding each number to the nearest 10: ______
- Estimate 40 + 38 by rounding each number to the nearest 10: ______
- Estimate 71 − 57 by rounding each number to the nearest 10: ______
- Estimate 72 − 56 by rounding each number to the nearest 10: ______