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Math Zen
A math practice app: 24 topics, adaptive difficulty, AP Calculus, SAT, Gaokao. Problems generated on your phone, offline. Free. Available in 11 languages.
$2.58
5 clicks
Education & Learning
Boosted rank, continuously pulled down by time
Boosted rank, continuously pulled down by time
A math practice app: 24 topics, adaptive difficulty, AP Calculus, SAT, Gaokao. Problems generated on your phone, offline. Free. Available in 11 languages.
Official school holiday calendars by country — term dates, break lengths and yearly schedules for planning family trips.