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