Sets & Venn DiagramsATI TEAS 7 cheat sheet

Overlaps and totals

6 key facts Reviewed Oct 2026

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The Parts

Each circle is a set; the overlap is the intersection (both)
The whole of both circles is the union (either)

Filling It In

Start in the middle with the overlap, then subtract outward
Each region should be counted exactly once

The Formula

Total = A + B − both (plus neither, if given)

Test Cue

'Only A' means A minus the overlap — a frequent trap

Key takeaway

Overlaps and totals

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