Answer:
10×(9+8+5)-2 = 218
Explanation:
You want the largest possible number that can be made from the operations {×, +, +, -} on the numbers {2, 5, 8, 9, 10} using only one set of parentheses.
Largest
To make the expression have its largest value, we must multiply the largest numbers and subtract the smallest number. The largest product can be made with 10 as one factor, and the sum of 9, 8, and 5 as the other factor.
The largest number you can form is ...
10×(9+8+5)-2 = 218
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