Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 54 − 82 by rounding each number to the nearest 10: ______
- Estimate 31 − 47 by rounding each number to the nearest 10: ______
- Estimate 25 + 83 by rounding each number to the nearest 10: ______
- Estimate 76 − 74 by rounding each number to the nearest 10: ______
- Estimate 55 + 27 by rounding each number to the nearest 10: ______
- Estimate 72 − 51 by rounding each number to the nearest 10: ______
- Estimate 51 − 50 by rounding each number to the nearest 10: ______
- Estimate 23 − 40 by rounding each number to the nearest 10: ______
- Estimate 88 − 40 by rounding each number to the nearest 10: ______
- Estimate 63 − 48 by rounding each number to the nearest 10: ______
- Estimate 33 + 40 by rounding each number to the nearest 10: ______
- Estimate 88 + 64 by rounding each number to the nearest 10: ______
- Estimate 22 + 27 by rounding each number to the nearest 10: ______
- Estimate 30 + 40 by rounding each number to the nearest 10: ______
- Estimate 21 − 67 by rounding each number to the nearest 10: ______
- Estimate 48 − 89 by rounding each number to the nearest 10: ______
- Estimate 59 + 51 by rounding each number to the nearest 10: ______
- Estimate 76 + 39 by rounding each number to the nearest 10: ______
- Estimate 33 − 27 by rounding each number to the nearest 10: ______
- Estimate 38 − 61 by rounding each number to the nearest 10: ______