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TechKnowSurge Catalog Interactives Next Hexadecimal Number — Practice
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Next Hexadecimal Number — Practice

Count up in hexadecimal one value at a time — see a hex number, type the one that comes next, and get feedback on every rollover.

⚑ Complete this interactive to capture a CTF flag worth 5 points.

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About this interactive

What you're seeing: a drill that shows you a hexadecimal number and asks for the one that comes right after it. Why it matters: hex counting has two moments that trip people up — after 9 comes A, not 10, and after F the digit resets to 0 and carries into the next place — and memory addresses, MAC addresses and color codes all assume you can step through them without stopping to think. How to use it: type the next value in hex and you get immediate feedback, including which digit to check if you miss. There's no timer here; once it feels automatic, take the same skill to the timed Next Hexadecimal Number arcade game.

What you'll learn

Aligned to

CompTIA Tech+
1.2 Identify notational systems.

Key terms

Hexadecimal
Hex
A base-16 number system using digits 0–9 and letters A–F; each hex digit maps to exactly 4 bits, making it a compact shorthand for representing binary data.
Nibble
A group of exactly 4 bits, equivalent to one hexadecimal digit; two nibbles make up one byte.
Byte
A group of 8 bits; the standard unit for representing a single character or small value in computing, and the building block for larger storage measurements such as kilobytes and gigabytes.

Topics

Hexadecimal Number Systems Hex Increment

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