Modular Arithmetic

Modular Arithmetic: e.g. Modular 4 (0,1,2,3)
+
0
1
2
3
0
0
1
2
3
1
1
2
3
0
2
2
3
0
1
3
3
0
1
2

X
0
1
2
3
0
0
0
0
0
1
0
1
2
3
2
0
2
0
2
3
0
3
2
1

-
0
1
2
3
0
0
3
2
1
1
1
0
3
2
2
2
1
0
3
3
3
2
1
0

By Muhammed