6.25
0110.01
1.1001 * 2^2
sign: 0
exp: 2 + 127 = 129 -> 10000001
mant: 
    implied: 1
    explicit: 10010000000000000000000

decimal: 0.5
binary: 0.1
1.0 * 2^-1
sign: 0
exp: -1 + 127 = 126 -> 01111110
mant:
    implied: 1
    explicit: 00000000000000000000000

decimal: 1
binary: 1.0
1.0 * 2^0
sign: 0
exp: 127 -> 01111111
mant:
    implied: 1
    explicit: 00000000000000000000000