hto

hundreds-tens-ones

Free

1.3for iPhone, iPad

Marcus Whiteley

Developer

17/03/2018

Update Date

Education

Category

App Store

Age Rating

Apps in this category do not contain restricted content.

Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

لقطات الشاشة لـ hto

iPad

iPhone

About hto

Tap the screen to make counters in the columns. They can be exchanged up and down by selecting and dragging to different columns. Easily add and subtract in a visual manner that really shows how the column method works.