Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 50 − 59 by rounding each number to the nearest 10: ______
- Estimate 75 − 87 by rounding each number to the nearest 10: ______
- Estimate 88 + 55 by rounding each number to the nearest 10: ______
- Estimate 68 + 82 by rounding each number to the nearest 10: ______
- Estimate 60 − 42 by rounding each number to the nearest 10: ______
- Estimate 49 − 54 by rounding each number to the nearest 10: ______
- Estimate 22 − 73 by rounding each number to the nearest 10: ______
- Estimate 70 − 40 by rounding each number to the nearest 10: ______
- Estimate 23 + 80 by rounding each number to the nearest 10: ______
- Estimate 43 − 79 by rounding each number to the nearest 10: ______
- Estimate 23 − 76 by rounding each number to the nearest 10: ______
- Estimate 71 + 39 by rounding each number to the nearest 10: ______
- Estimate 50 + 27 by rounding each number to the nearest 10: ______
- Estimate 49 − 66 by rounding each number to the nearest 10: ______
- Estimate 43 + 57 by rounding each number to the nearest 10: ______
- Estimate 74 − 56 by rounding each number to the nearest 10: ______
- Estimate 72 + 33 by rounding each number to the nearest 10: ______
- Estimate 50 + 60 by rounding each number to the nearest 10: ______
- Estimate 30 − 52 by rounding each number to the nearest 10: ______
- Estimate 28 + 42 by rounding each number to the nearest 10: ______