Answer:
1. 52
2. 75
3.
Step-by-step explanation:
PEMDAS! I love PEMDAS problems!
1. (63 - 3) / 6 + 42
(P means parenthesis first - after you do this step the parenthesis goes away)
60 / 6 + 42
(We have no exponets so we move on to doing division and multiplication from left to right)
10 + 42
(Now we add!)
52
2. (8*4+5^2) + 8
(Now we have to do PEMDAS inside the parenthesis - So we have to do exponents first)
(8*4 + 25) + 8
(Now you do multiplication from left to right)
(32 + 25) +8
(Now that we only have one sign in our parenthesis we can solve it to get rid of it.)
67 + 8
(now add!)
75
3. (13 + 5)^2 + 8 / 2
(We have to do parenthesis first because of the P)
18^2 + 8/2
(now we do exponents)
324 + 8 / 2
(Now we divide and multiply from left to right)
324 + 4
(now add!)
328
