Arithmetic - Miscellaneous
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## Arithmetic - Miscellaneous - Pyramid Challenge

Before you get to the Pyramid Challenge game you need to know a thing or two about hexadecimal numbers. Usually people use the number system known as the decimal system which you are quite used to working with. But there are other number systems, such as the hexadecimal system (not to mention the binary and octal number systems).

The hexademical system uses the same numbers as the decimal system plus six letters:

```
HEXADECIMAL	DECIMAL
0		  0
1		  1
2		  2
3		  3
4		  4
5		  5
6		  6
7		  7
8		  8
9		  9
A		 10
B		 11
C		 12
D		 13
E		 14
F		 15

```
Computer programmers use hexadecimal numbers for many different things and so it's not a bad to be at least aware of their existence.

Pyramid Challenge:

To win this game you must jump dots in such a way that only one dot is left at the end of the game. You jump as in checkers. You must designate a SOURCE spot and a DESTINATION spot. There must be an occupied spot between the SOURCE spot and the DESTINATION spot.

For your first move there are two possibilities:

```
SOURCE		DESTINATION
6		   1
4		   1

```

Change between the source and the destination by using the space bar or the up and down arrow keys.

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