10100 - 101 =
10010/1001 =
10010 * 10 =
1111/11=
1111 * 11 =
10101 - 1011 =
1010 + 10110 =
1111 + 1010 =
10010 + 11 =
101101
100100
101
10011
10
11001
10101
100000
1010
