The highest starting position Norris could have after a 10-place drop from pole is 11th. Pole position is first place on the starting grid, so moving back ten positions places a driver in 11th.
A grid penalty is applied after qualifying and changes a driver's starting slot; it does not alter the qualifying result itself. The penalty is counted from the driver's earned grid position, subject to the FIA's procedures for handling multiple penalties and the final order.
At the 2026 Belgian Grand Prix, Norris actually qualified third and received a 10-place penalty for exceeding his power-unit component allocation, leaving him 13th on the final grid. That real-world result can cause confusion, but this question asks for the hypothetical calculation from pole, not Norris's actual starting place.
The common mistake is to subtract ten from a position number or to confuse “ten-place drop” with starting tenth. Starting first and dropping ten positions means counting positions 2 through 11, making 11th the correct answer.