Hex 1: Hex & Denary

Question	Answer
Hex Number System	Base 16 Uses 'Numbers': 0 1 2 3 4 5 6 7 8 9 A B C D E F
A-F Represent?	A =10 B = 11 C = 12 D = 13 E = 14 F = 15
Why use Hex?	Hex codes are used in many areas of computing to simplify binary codes. Computers do not use hexadecimal - it is used by humans to shorten binary to a more easily understandable form.
Convert Denary to Hex	E.g. 161 to Hex Step 1: Work out how many 16's can fit into the denary number. (e.g 16 x10 = 160) Step 2: Work out the remainder (e.g. 161-160 = 1) Step 3: So far we have an answer of 10\|1 but we need to use the Hex number system 10 = A 1 = 1 Our answer is A\|1 161 = A1
100 to Hex	16 * 6 = 96 100 - 96 = 4 Answer = 6\|4
16 to Hex	16 * 1= 1 16 - 16 = 0 Answer = 1\|0
Convert Hex to Denary	E.g. AB Step 1: Multiple the first digit by 16 (E.g. A * 16 which is 10 * 16 = 160) Step 2: Add the second digit to the total (e.g. 160 + B which is 160 + 11 = 171) Step 3: AB = 171
16 to Denary	1 * 16 = 16 16 + 6 = 22 16 Hex = 22
F3	F * 16 = 15 * 16 = 240 240 + 3 = 243 F3 Hex = 243

Resource summary

	Created by Lyssa Badger almost 9 years ago