Answer:
7.) 0
8.) 15
9.) 71
12.) 4 / 15
Step-by-step explanation:
7.) 4 + 2 * 12 ÷ 6 - 8 =
Evaluate using PEMDAS
First do parenthesis: There are no parenthesis so we go to the next step
Next we do exponents: There are no exponents so we go to the next step
Next we do multiplication and division ( going left to right )
2 * 12 = 24
24 ÷ 6 = 4
we now have 4 + 4 - 8
The last step is addition in subtraction ( left to right )
4 + 4 = 8
8 - 8 = 0
So 4 + 2 * 12 ÷ 6 - 8 = 0
8.) 9 ÷ 3 + 6 * 2
Evaluate using PEMDAS
There are no parenthesis or exponents so we go to the third step
The third step is multiplication and division ( going left to right )
9 ÷ 3 = 3
6 * 2 = 12
3 + 12 = 15
9 ÷ 3 + 6 * 2 = 15
9.) 3 + 4 - 6 + 2 * 35
Evaluate using PEMDAS
No exponents or parenthesis so go to next step
Multiplication and division first
2 * 35 = 70
3 + 4 - 6 + 70
Addition and subtraction next ( going left to right )
3 + 4 = 7
7 - 6 = 1
70 + 1 = 71
3 + 4 - 6 + 2 * 35 = 71
