Mr. Rogers' Number Conversion and Unicode Worksheet

binary  1110101000011010111  to hex = 750D7
binary  1010  to hex =  A
binary  1101  to hex = D
binary  1110  to hex = E
binary  1111  to hex = F

binary  1111 + 11  = binary 10010
binary  1111 - 10   = binary 1101
binary  1111 - 111 = binary  1000
binary  1111 + 111  = binary  10110
binary  1111 + 1101 = binary 11100

hex F0AFB to binary =  11110000101011111011
hex 12340 to binary =   00010010001101000000
hex 56789 to binary =   01010110011110001001

162 = 256    161 = 16     160 = 1
hex AA to decimal =                     (10 x 16) + (10 x 1) = 170
hex 2F to decimal =                      (02 x 16) + (15 x 1) = 47
hex 10A to decimal = (1 x 256) + (00 x 16) + (10 x 1) = 266

hex (11 - 1) = hex 10
hex (11 - 2) = hex F
hex (100 - 2) = hex FF
hex (FFF + 3) = hex 1002
hex (E0A + 6) = hex E10
hex (A + A) = hex 14

decimal 259  to hex = 103
decimal 17  to hex = 11
decimal 165  to hex = A5
decimal 26  to hex = 1A

The integer representing Unicode A is 65
The integer representing Unicode Z is 90
The integer representing Unicode a is 97
The integer representing Unicode z is 122
'z' - 'Z' = 32
'q' - 'Q' = 32
'n' - 'N' =  32
'w' - 'W' = 32