Twenty problems across the four test themes. Work each one out and type your answer in the box. There are no answer keys here on purpose — just do your best, then lock it in. Your grown-up grades it afterward.
About 45–60 minutes. No timer. Your answers save as you go, so you can stop and come back.
Nice work, Aya. Your answers are saved. Now hand it to your grown-up to grade — they have 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.
—