⚽ Sports Clubs
I can count members of overlapping sets.
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When some pupils belong to both groups, count the "only" groups and the "both" group so each pupil is counted once.
Example: 10 only cricket, 6 only football, 4 both
- 10 + 6 + 4
- = 20 pupils
Questions get harder as you go. The last ones ask you to type the answer.
