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Number Line

By Todd Bowden

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My new app NumberLine2 for iOS7, iPad & iPhone5 is now available. Go to or tap on “Developer Apps” to find it.


Number Line is an educational game app to help students learn about fractions, decimals, and percents by ordering equivalent fractions, decimals, and percents on a number line. The app features multiple levels where the player must drag circles with either a percent, decimal or fraction onto a number line in the correct sequence. A score is earned based on the time it takes to put all the circles in the correct order (faster is better), plus points for each correct placement, minus points for each error.

iPhone Screenshot

iPhone Screenshot 1

Customer Reviews

Good brain food

I'm years out of school, but enjoy the challenge of moving among fractions, percents and decimals. I'd like to see a few enhancements, though. Some way of measuring performance from one session to another would be really great. Also good would be a way of entering at a higher level than 1. That said, this is a really satisfying challenge that wakes up my brain.
Additional item for the wish list: let the line remain when it's completed so relative values can be looked at again. This would be especially useful for comparing values of fractions.

A good game that's missing the basics...

The game itself is good and educational however it's missing some key features that drags it way down. It needs a high score list, a level selecter, and remember the highest level achieved. An option to adust the amount and complexity of decimals, fractions, and percentage would also be very nice. As it is, it's annoying that when you exit the current game, it's immediately back to square 1; there's no option whatsoever to continue where you left off. I guess that's why it's only version 0.1; it's a very unfinished game.


I like the app. I wish I could use it with my students but I can't since there's no option to do decimals only or fractions only. It'd be great if there's a toggle to turn on/off decimals, fractions and percents. Also, it needs to give the option of 1, 2 or 3 digits after the decimal point (or a combination of all 3). I'm sure they will make this improvements. There's lots of potential in this app in the educational field.

Number Line
View in iTunes
  • Free
  • Category: Education
  • Released:
  • Version: 0.1
  • Size: 1.0 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 2.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

Current Version: