Topics and method
Covers binary conversion, indices and logarithms, numeration, clocks, calendars, time-work, speed-distance-time and seating arrangements. Convert units and check the result in context.
Worked application
Convert 45₁₀ to binary: repeated division gives 101101₂; verify 32+8+4+1=45.
Practice
- Write the formula and assumptions before substituting.
- Interpret the result using the units and context in the question.