Your dress rehearsal for the July 27 placement test. Nineteen problems across all four themes, on the clock. Work each on paper, type your answer, and try to beat the timer — just like the real thing. No notes.
Stuck more than ~2 minutes on one? Leave it and move on — come back if there’s time.
Nice work, Aya — you finished the mock. Your answers are saved. Hand it to your grown-up to grade with the code.
For each problem you’ll see Aya’s answer and the worked solution. Mark each one. Be fair on “Partly” — right method, small slip.
—