- Developer: Balabharathi.com LLC
- Website: Official website
- Release Date: 2011-12-02
- Supports: Family Sharing
- Languages: English, Czech, Dutch, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Turkish
- Compatibility: Requires iOS 6.1 or later. Compatible with iPhone, iPad, and iPod touch.
## Description
Mental Math Challenge: Add and Subtract app is the most challenging app for mastering addition and subtraction problems. This app is useful for all ages. Take the challenge and become a champion in addition and subtraction operations. Whoever become a champion in this challenge will be able to add and subtract with lightening speed.
Mental Math Challenge: Add and Subtract Features:
-Step by step instructions for easy mental addition and subtraction.
-Separate lessons for 2 digit, 3 digit and 4 digit number operations.
-Very interesting and easy to remember math tricks.
-Challenging tests that have levels and achievements for motivation.
-Each test has 3 levels with increasing difficulty.
-Will be very useful for kids going for oral math quizzes
-Will increase number sense in kids
- Gus on the Go: Ingush
- Gus on the Go: Italian
- Gus on the Go: Japanese
- Gus on the Go: Korean
- Gus on the Go: Mandarin
- Gus on the Go: Norwegian
- Gus on the Go: Polish
- Gus on the Go: Portuguese
- Gus on the Go: Romanian
- Gus on the Go: Russian
- Gus on the Go: Spanish
- Gus on the Go: Stickers Volume 1
- Gus on the Go: Swedish
- Gus on the Go: Taiwanese
- Gus on the Go: Turkish