Evaluate. 90 ÷ 10 – 12 ÷ 3
I know this answer is 5 but how do i write it out?
90/10 - 12/3
or
90 - 12
--- --- = 5
10 3
To evaluate the expression 90 ÷ 10 – 12 ÷ 3, you need to follow the order of operations, also known as PEMDAS (Parentheses, Exponents, Multiplication, Division, Addition, Subtraction).
1. First, perform any division in the expression.
So, we have: 90 ÷ 10 = 9 and 12 ÷ 3 = 4.
Now, the expression becomes: 9 - 4.
2. Next, perform any subtraction.
9 - 4 = 5.
Therefore, the final answer is 5.
In written form, you can show the steps like this:
90 ÷ 10 = 9
12 ÷ 3 = 4
9 - 4 = 5