Arithmetika — ASO

By Jose Bernardo Ramirez Cornejo on AppTrack Ninja.

Mental math in three minutes

Most of us reach for the phone the second we need to do any math. Splitting a $74 bill four ways. Working out 18% on $52.40. Checking that the cashier actually gave back the right change. Arithmetika is a small daily workout to claw some of that back. Three minutes a day. No streaks to babysit. No ads. WHAT YOU GET A short timed quiz of arithmetic problems. You type the answer on the keypad, hit next, repeat. Get one wrong and the timer adds 5 seconds. Beat your best total time and you've set a new high score. There's also a Mental Quiz: operations flash one at a time and you have to hold the…

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