Сыни ойлау18 мин
Problem Solving
Mixed numerical CT puzzles. Set up clearly, sketch when useful, watch the units.
01
Setup discipline
- Read twice. Note the **target** value before computing anything.
- Translate the conditions into equations or a table.
- Estimate the order of magnitude — catches plug-in errors.
- Re-check that the answer matches the target.
02
Worked example
Tickets
A school sells 200 tickets at 4. Total revenue?
- Revenue = .
- = .
Жауап: $2200