7 + 2 * 5 - 8 / 4 = 15
This answer was calculated according to the order of operations.
Rule 1: First perform any calculations inside parentheses.
Rule 2: Next, from left to right, do all multiplications and divisions.
Rule 3: Last, from left to right, do all additions and subtractions.
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10^2 minus 4 times 8 divided by 8 plus 9 is equal to 105.
3 divided by 4 plus 1 divided by 2 minus 2 divided by 3
60
2
32.5 or 32 1/2