11+ maths stays inside the national curriculum — the difficulty is pace and disguise, not new content. Here's the full topic checklist with the highest-mark areas flagged.
The high-frequency topics
Fractions, percentages and ratio carry the most marks, wrapped inside word problems. BIDMAS, averages and basic algebra are the most-missed easy marks. Geometry contributes steadily via area and perimeter and angle facts.
Speed is the real test
Fifty questions in fifty minutes leaves no room for slow recall — mental-maths technique and instant table facts are what separate finishers from non-finishers. Build both with daily drills, then pressure-test in timed mocks.