Binary, Hexadecimal & Decimal
How computers count, and how to convert between number systems
In the beginning...
Complete this course to earn XP
Lessons
Place value
Binary to decimal
Practice: Binary to decimal
Counting in binary
Bits, nibbles and bytes
Practice: How many bits?
Decimal to binary
Practice: Decimal to binary
Hexadecimal
Hex to decimal
Practice: Hex to decimal
Decimal to hex
Practice: Decimal to hex
Binary and hex by nibbles
Practice: Match nibbles to hex
Binary addition
Practice: Add binary numbers
Overflow
Practice: Spot the overflow
Hex colour codes
Practice: Read a colour code
Where each base is used
Practice: Mixed conversions
Course Complete
Up next
Bits that count
Master base 2, base 10, and base 16 conversions. Practice binary addition, understand bits and bytes, and see how hex codes map to colours.
Launch Lesson