Verified Answer :

Use PEMDAS
P= parentheses
E=exponents
M=Multiplication
D=Division
A=addition
S=subtraction

Note: you can do division before multiplication and you can do subtraction before addition

Problem 1: 25-332
Do multiplication first
33 = 9
9
2=18
Then subtract
25-18 = 7

Problem 2: 8+2²2
Do exponents first
2² Is the same as 2
2
So It's 4
42=8
8+8= 16

Problem 3: 12÷1
2-6
12÷1=12
122=24
24-6=
18

Problem 4: 12÷(1
2)-6
Do parentheses first
12=2
12÷2=6
6-6=0

Problem 5: 5-2⁴÷2³
2
5-16÷82
5-2
2
5-4
1

Problem 6:

(5-2⁴÷2³)2

(5-16÷8)
2
(5-2)2
3
2
6

Hope this helped