Final answer:
The expression that is 1/2 as large as 486 - 466 can be found by dividing the difference by 2.Correct option is A.
Step-by-step explanation:
1/2 as large as 486 - 466 can be found by dividing the difference by 2. So, the correct expression would be A. 1/2 x (486 - 466). This will give us the result that is 1/2 as large as the difference between 486 and 466.