🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5colspan merges (horizontally).
6rowspan merges (vertically).
🚀 Section C · Challenge ● CHALLENGE 5
✂ answer key — fold or cut before handing out
1-A 2-A 3-A 4-A | 5 columns 6 rows 7 = <th colspan="3">Results</th> 8 = <td rowspan="2">...</td> 9 = Cell counts change per row - easy to break alignment | 10 = colspan = across; rowspan = down