Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 73 − 21 by rounding each number to the nearest 10: ______
- Estimate 44 + 25 by rounding each number to the nearest 10: ______
- Estimate 53 + 85 by rounding each number to the nearest 10: ______
- Estimate 47 − 42 by rounding each number to the nearest 10: ______
- Estimate 22 − 63 by rounding each number to the nearest 10: ______
- Estimate 81 + 71 by rounding each number to the nearest 10: ______
- Estimate 59 − 55 by rounding each number to the nearest 10: ______
- Estimate 59 + 83 by rounding each number to the nearest 10: ______
- Estimate 64 + 69 by rounding each number to the nearest 10: ______
- Estimate 24 − 38 by rounding each number to the nearest 10: ______
- Estimate 74 − 82 by rounding each number to the nearest 10: ______
- Estimate 48 − 53 by rounding each number to the nearest 10: ______
- Estimate 76 − 68 by rounding each number to the nearest 10: ______
- Estimate 49 − 71 by rounding each number to the nearest 10: ______
- Estimate 63 − 69 by rounding each number to the nearest 10: ______
- Estimate 74 − 29 by rounding each number to the nearest 10: ______
- Estimate 41 + 59 by rounding each number to the nearest 10: ______
- Estimate 45 + 45 by rounding each number to the nearest 10: ______
- Estimate 29 + 25 by rounding each number to the nearest 10: ______
- Estimate 88 + 27 by rounding each number to the nearest 10: ______