Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 74 + 61 by rounding each number to the nearest 10: ______
- Estimate 77 + 45 by rounding each number to the nearest 10: ______
- Estimate 46 + 65 by rounding each number to the nearest 10: ______
- Estimate 48 − 69 by rounding each number to the nearest 10: ______
- Estimate 86 − 62 by rounding each number to the nearest 10: ______
- Estimate 37 − 59 by rounding each number to the nearest 10: ______
- Estimate 21 − 82 by rounding each number to the nearest 10: ______
- Estimate 86 + 52 by rounding each number to the nearest 10: ______
- Estimate 65 + 22 by rounding each number to the nearest 10: ______
- Estimate 77 + 67 by rounding each number to the nearest 10: ______
- Estimate 82 + 23 by rounding each number to the nearest 10: ______
- Estimate 72 + 23 by rounding each number to the nearest 10: ______
- Estimate 56 − 68 by rounding each number to the nearest 10: ______
- Estimate 40 − 70 by rounding each number to the nearest 10: ______
- Estimate 67 + 63 by rounding each number to the nearest 10: ______
- Estimate 63 − 22 by rounding each number to the nearest 10: ______
- Estimate 24 + 41 by rounding each number to the nearest 10: ______
- Estimate 84 + 53 by rounding each number to the nearest 10: ______
- Estimate 40 − 35 by rounding each number to the nearest 10: ______
- Estimate 66 − 35 by rounding each number to the nearest 10: ______