Order of Math Operations
We can remember the order using PEMDAS: Parentheses, Exponents, Multiplication, and Division (from left to right), Addition, and Subtraction (from left to right).
We are given the expression
9 ÷ 3 + 1 = 4
If we follow the natural order of operations given in the rule above, then the sequence is: Division and then sum, thus:
9 ÷ 3 + 1 = 3 + 1 = 4
We can see the result is correct.
If we did it the other way, we had to operate the parentheses first:
9 ÷ (3 + 1) = 9 ÷ 4 = 2.25
Thus, the first choice is correct.
