Add or Sub app for iPhone and iPad

4.0 ( 2620 ratings )

Games Puzzle Education Educational
Developer: Kei Minagawa

Free

Current version: 1.2, last update: 7 years ago
First release : 10 Nov 2014
App size: 2.07 Mb

********** Feature **********
1. Just choose + or -.
2. Over 20000 problems.