Decimal Rounding for iPad & iPhone
This math app can be used to teach and study the rounding of decimals. You can set your own problems or solve random problems. The decimal numbers can be rounded to nearest whole number, tenth, hundredth or thousandth. They can also be rounded to 0, 1, 2 or 3 decimal places.
The app guides you step by step when you solve each problem and there are no penalties for wrong answers. Clean interface and the total lack of timers ensures a stress free learning environment.
Features and settings:
Each decimal number can have 28 digits
Problems can be random or custom
Colors of the interface can be changed
The speed of the animations can be set
Different interface on iPhone and iPad
Works in portrait and landscape orientation on the iPad
Videos
Rounding decimals to the nearest whole number

Rounding decimals to the nearest tenth or hundredth

Rounding decimals to the nearest thousandth

Rounding decimals to the nearest decimal places 
Decimal Rounding in the Apple VPP Store for Education
The Volume Purchase Program allows participating educational institutions to purchase iDevBooks math apps in volume and distribute them to students. All iDevBooks math apps offer special 50% discount for purchases of 20 apps or more for participating educational institutions.