iPad Screenshots


Hands-On Math: Interactive Hundreds Chart creates a virtual math playground where students explore, investigate and discover mathematical concepts. Students use colored markers on the Interactive Hundreds Chart to represent patterns and number sequences.

Using Hands-On Math: Interactive Hundreds Chart students can develop the following important mathematical concepts:


Number Patterns

Multiplication and Division Facts

Prime and Composite Numbers

Least Common Multiple

Divisibility of Numbers and more...

An extensive Instructor's Guide for this app is available at the support website. Download the document and install it in iBooks to access ideas about how to use the Interactive Hundreds Chart for teaching elementary mathematics.

Extremely easy for students and teachers to use. Tap a color and a marker, then tap numbers on the chart. To remove a marker simply slide it off the chart. Erase all markers by tapping the eraser.

Note to reviewer: Simply slide a marker off the board to remove it. There is no need to erase entire board if you make a mistake.

What’s New

Version 2.4

This version supports iPad Pro and the latest version of iOS.

Ratings and Reviews

3.0 out of 5
1 Rating

1 Rating

ChristyGraybeal ,

Needs an undo feature

I wish there was a way to uncover a number without clearing the entire board. If you make a mistake you need to start over.

Developer Response ,

To uncover a number simply drag the marker off the chart.

Pasdksa ,

Lovely, very useful

Seems to have an arbitrary limit on the number of markers that can be placed -- so it's difficult to demonstrate the Sieve of Eratosthenes using a different color for each multiple of the first few primes. Also, removing a marker is difficult and haphazard. An undo button would be useful in addition to the eraser button which clears ALL of your work. Overall, a very handy app for teachers. I'm grateful.

zzzzzzzzzzzzzzzzzzz! ,


This is a great app with many features. It's nice to be able to remove any marks from the number line. With numerous ways to mark numbers kids can get a better sense of the numbers and their many multiples. The speech setting is great. The voice clearly pronounces the numbers.


Ventura Educational Systems
43.7 MB

Requires iOS 7.0 or later. Compatible with iPad.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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