PEMDAS says you should do 42-7 first
150 + 23 x (42 - 7) + 31
150 + 23 x 35 + 31
150 + 805 + 31
,,,
clearly doing 150+23 first is way wrong, since multiplication is done before addition
What is the first step that should be performed to find the value of this expression?
150 + 23 x (42 - 7) + 31
1. Add 150 + 23
2. Multiply 23 x 42.
3. Add 7 + 31.
4. Subtract 42 - 7.
I think the answer is "Add 150 + 23", am i right?
1 answer
1 answer