Estimation Worksheet
Name: ____________________Date: ____________
Instructions: Estimating sums, differences, and products by rounding and compatible numbers.
20 problems
- Estimate 50 − 85 by rounding each number to the nearest 10: ______
- Estimate 45 − 51 by rounding each number to the nearest 10: ______
- Estimate 74 + 74 by rounding each number to the nearest 10: ______
- Estimate 68 + 21 by rounding each number to the nearest 10: ______
- Estimate 57 + 21 by rounding each number to the nearest 10: ______
- Estimate 80 + 87 by rounding each number to the nearest 10: ______
- Estimate 61 + 52 by rounding each number to the nearest 10: ______
- Estimate 45 − 21 by rounding each number to the nearest 10: ______
- Estimate 66 + 47 by rounding each number to the nearest 10: ______
- Estimate 38 − 55 by rounding each number to the nearest 10: ______
- Estimate 52 − 23 by rounding each number to the nearest 10: ______
- Estimate 69 − 41 by rounding each number to the nearest 10: ______
- Estimate 63 − 71 by rounding each number to the nearest 10: ______
- Estimate 32 + 65 by rounding each number to the nearest 10: ______
- Estimate 81 − 75 by rounding each number to the nearest 10: ______
- Estimate 43 + 86 by rounding each number to the nearest 10: ______
- Estimate 38 + 54 by rounding each number to the nearest 10: ______
- Estimate 25 + 33 by rounding each number to the nearest 10: ______
- Estimate 38 + 81 by rounding each number to the nearest 10: ______
- Estimate 73 − 31 by rounding each number to the nearest 10: ______