Numbertime 11-20 1.0 was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this software available. Numbertime 11-20 lies within Games, more precisely Arcade.
The most frequent installation filename for the software is: 11-20.exe. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The most popular version among Numbertime 11-20 users is 1.0. This free program was originally created by BBC/Logotron.
From the developer:
This software package provides practice with the often neglected numbers 11-20. There are 6 games which practice ordering the numbers, counting, adding, subtracting, place value and counting in steps. Each game has two levels - normal and challenge - and several have a number line visible on screen.
You may want to check out more software, such as TaxWise, which might be similar to Numbertime 11-20.