Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 78 + 47 by rounding each number to the nearest 10: ______
- Estimate 62 − 52 by rounding each number to the nearest 10: ______
- Estimate 59 + 51 by rounding each number to the nearest 10: ______
- Estimate 28 − 41 by rounding each number to the nearest 10: ______
- Estimate 35 + 69 by rounding each number to the nearest 10: ______
- Estimate 49 − 87 by rounding each number to the nearest 10: ______
- Estimate 25 + 53 by rounding each number to the nearest 10: ______
- Estimate 33 − 59 by rounding each number to the nearest 10: ______
- Estimate 69 − 42 by rounding each number to the nearest 10: ______
- Estimate 22 + 47 by rounding each number to the nearest 10: ______
- Estimate 21 + 69 by rounding each number to the nearest 10: ______
- Estimate 56 + 70 by rounding each number to the nearest 10: ______
- Estimate 77 − 32 by rounding each number to the nearest 10: ______
- Estimate 46 − 27 by rounding each number to the nearest 10: ______
- Estimate 53 + 33 by rounding each number to the nearest 10: ______
- Estimate 65 − 31 by rounding each number to the nearest 10: ______
- Estimate 29 + 62 by rounding each number to the nearest 10: ______
- Estimate 78 − 74 by rounding each number to the nearest 10: ______
- Estimate 46 + 76 by rounding each number to the nearest 10: ______
- Estimate 35 − 68 by rounding each number to the nearest 10: ______