Khan Academy
Khan Academy: Binary Numbers
Practice converting between binary numbers and decimal numbers in this set of free practice questions designed for AP Computer Science Principles students.
Khan Academy
Khan Academy: Number Limits, Overflow, and Round Off
Check your understanding of number precision, overflow errors, and roundoff errors in computer programs.
Khan Academy
Khan Academy: Hexadecimal Numbers
Practice converting hexadecimal numbers to binary and decimal numbers, in this set of practice questions designed for AP Computer Science Principles students.
Khan Academy
Khan Academy: Logic Gates
Check your understanding of how AND/OR/NOT logic gates output 0 or 1 based on inputs.