Matching Pairs Number systemsOnline version Numbering systems by Elena Rojo 1 25 in decimal 2 1 Gb 3 Byte 4 12 in decimal 5 15 in octal 6 31 in decimal 7 11 in decimal 8 15 in decimal 9 1A in hexadecimal 8 bits 1111 in binary 1100 in binary B in hexadecimal 31 in octal 0001 1010 in binary 1024 MB 1F 001101 in binary