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pow
Your job is to follow the Order of Operations in which one always does the operations in a math problem in a sequence of:

P arenthesis first
E xponents second
M ultiply or
Dvide next whichever is first in line left         to right
A dd and
S ubtract last.  Always do multipling and      dividing ahead of adding and                      subtracting.


So take the numbers 8 4 2 1 and keep them in that order.  You may add parenthesis , exponents, + - X or divide.

Now make those numbers =
0

1

2

3

4

5

6

7

8

9

10

11
12
13
14
15
16
17
18
19
20

An example would be ( 8-4) + 2 -1 = 5   since 8-4 goes first and that = 4 + 2 -1 which is 5
P


E



M




D




A




S




HInt, any number to the zero power is always =   1