Enjoy this lite version of the famous Montessori Hundred board. Here you can test out how the counting activities work and you can upgrade the app to include all the activities available in the full version & school edition!

Full version description:

Ages 3-6. This is our most popular app of all time, used by school systems in the United States, Australia, Germany, and others. It is the highest quality app in the store that you'll find to teach and practice the concept of numbers from 1 to 100. We first developed it in 2009 and continue to update it with new features. Thanks for your support of our famous, Hundred Board!

The Hundred Board is a fun and educational exercise found in the Montessori classroom to help children with their counting from 1 to 100. The board and number tiles in the app are exact replicas of the classic classroom materials.

The basic task is to transfer the scrambled number tiles on the right hand side to the board in the correct order.


- Assemble the Hundred Board in sequence using either a touch only method where the number tile moves to the board automatically, or drag and place the tiles to the board for them to snap into position.

- Show the control numbers on the board to simplify the task.

- Simplify the task even further with an activity that shows a reduced number of scrambled tiles to search through.

- Assemble the Hundred Board in a random fashion.

- Assemble the Hundred Board in sequence by Evens or Odds.


- Every number can be heard aloud when it is placed into position, reinforcing the name of each number for the child.

- At the bottom of the screen there is either a score or a timer for parents and teachers to evaluate a child's progress.


- Purchase the first upgrade to practice counting from 101-200, with all the same activities described above.

- Purchase the second upgrade to practice counting from 1 - 1000!


Schools worldwide have incorporated our apps into their classrooms. See it used in a Montessori school in Germany here:

The Hundred Board is now promoted by the Australian Institute for Teaching and School Leadership as an effective app for learning number sequencing techniques.

Customer Comments:

"This looks very simple, but, you'd be surprised how engrossing the children find this lesson to be. I've watched our five year old daughter spend over an hour working with it, trying to get to a hundred!"

"Our son (6) started first grade and is ecstatic to be the only kid to write all the numbers from 1-100! Your app is fun to him!"

This activity is a time-tested, teaching tool used in the Montessori classroom that children enjoy doing. The app was co-developed and approved by an AMI certified Montessori teacher with over forty years experience. Use this app as a complement to your child's classroom education and as a follow-up to the other Montessori applications in the app store teaching introductory counting. Your child will enjoy this challenging and fun activity!

Visit our website:

App page:

What’s New

Version 6.2

Fixed an error with the 1000 extension.

Ratings and Reviews

5.0 out of 5
1 Rating
1 Rating
Bagpuss40 ,

Only works up to 25

I realise that this is the free version but this app only works up to the number 25. When you press 26 it switches to an info page and you can't go back. I downloaded the trial because I was considering buying the app but this is not enough to assess it as you don't see what happens when the child gets to 100. Not to mention the fact that my son worked hard to get to 25 and was then upset when it disappeared. Not at all the standard that I expect from Montessori.

Kaniki70 ,

Lite version not good.

Very disappointed that this lite version only allowed my little one to count to 10.


Rantek Inc.
237.5 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© 2018 Mobile Montessori ® by Rantek Inc.
In-App Purchases
  1. Hundred Board FULL VERSION $5.99
  2. Hundred Board 101 - 200 Extension $4.49
  3. Hundred Board Extension 1 - 1000 $2.99


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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