# Number Line, by MLC — A Math Learning Center tool

> Interactive virtual number line for visualizing and demonstrating math concepts. (iPhone/iPad app by The Math Learning Center.)

- Source: https://appshunter.io/ios/app/number-line-by-mlc/id751816884 (this page in markdown: same URL + `.md`)
- Developer: [The Math Learning Center](https://appshunter.io/developer/1542700905)
- Category: Education
- Price: Free
- Rating: 4.40/5 from 15 App Store ratings · 12 written reviews indexed
- Age rating: 4+
- Requires: iOS 16.1 · 7 MB
- Languages: American English
- Released: 2013-11-22
- Data updated: 2026-06-07
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/number-line-by-mlc/id751816884/reviews.md

## What is Number Line, by MLC?

Number Line helps students visualize number sequences and demonstrate strategies for counting, comparing, adding, subtracting, multiplying, and dividing. Choose number lines labelled with whole numbers, fractions, decimals, or negative numbers. Or use a blank number line, with or without tick marks. 

Describe intervals between points on the line using forward or backward jumps above and below the line. Jumps can be labelled with their values or left blank. Add custom tick marks to the number line to show equivalence or compare number values. Show strategies with drawing and annotation tools.

Hide elements of the sequence shown on the number line, which challenges students to use what they know about number relationships and computation to identify those missing elements. 

This virtual number line is an open-ended educational tool, ideal for elementary classrooms and other learning environments that use iPads.

For more Number Line resources and other apps, visit: 

www.mathlearningcenter.org/apps 

FEATURES

• Mark the number line with multiples of whole numbers, fractions, or decimals. In addition, set the starting value of the line, including using negative values.

• Add and manipulate forward and backward jumps, above or below the line.

• Label jump bars, manually or automatically, to show intervals or hide labels altogether.

• Add custom tick marks and values to blank number lines.

• Hide and reveal numbers on the number line.

• Hide and reveal jumps, numbers, and other elements with resizable covers to create your own problems and model strategies.

• Use the drawing tools to annotate work and show understanding.

• Add equations, expressions, and descriptions with the math text and writing tools.

• Share your work by saving an image or providing a share code to others.

MORE APPS

For more Number Line resources and other apps, visit:

www.mathlearningcenter.org/apps

LEARN MORE

To learn about Bridges in Mathematics, an elementary curriculum that employs visual models like number line, visit:

www.mathlearningcenter.org/bridges/overview

ABOUT US

This resource is brought to you by The Math Learning Center, a nonprofit organization dedicated to K-12 education since 1976.

ACKNOWLEDGEMENTS

This app was crafted by Clarity Innovations. We help improve teaching and learning by creating solutions that match promising technologies with the needs of education.

Visit us: www.clarity-innovations.com

## Key features

- Visualize number sequences
- Demonstrate counting, adding, subtracting, multiplying, dividing
- Use whole numbers, fractions, decimals, or negative numbers
- Add custom tick marks and labels
- Hide and reveal numbers and jumps
- Annotation and drawing tools
- Save and share work

## Recent user reviews (10 of 12)

All indexed reviews: https://appshunter.io/ios/app/number-line-by-mlc/id751816884/reviews.md

### 5/5 — Excellent app

*2022-06-23, version 4.0.1*

The only other review for this app claims that it does not go below zero. Simply go to the Line Settings gear icon and enter a negative value of your choice.
I haven’t discovered if there is a range setting.

### 5/5 — Love this app!

*2019-08-09*

As a middle school math teacher, I love the versatility this app offers with the option of fractions, decimals and...drumroll...negative numbers!  Thank you for creating an easy-to-use app that will transform my classroom!  Even though we’re not 1:1, I can see myself using this for small groups.

### 5/5 — Good app

*2017-11-20*

I liked the game because it helps me!

### 5/5 — Very useful math tool

*2017-10-01*

This app is a great tool we use for homeschool.  I like that you can choose the numbers shown on the number line: whole numbers, even, odd, tens.  Since the other reviews, negative numbers have been added.  Easy to use, free with no ads!  Can be used with any math curriculum.

### 1/5 — Will Not Open

*2017-08-02*

I can't get the app to open.  I have downloaded it twice.  My teacher-friend downloaded it and showed it to me.  Her copy works.

### 3/5 — Negative numbers

*2016-03-03, version 2.0*

Is there a number line with positive and negative numbers? Need to know ASAP

### 4/5 — Almost perfect

*2015-09-27, version 2.0*

This is a really nice, well thought out number line app. I played with it and got to grips with the features within 5 minutes however unfortunately it doesn't seem to go lower than zero so is definitely only for primary school age.

### 3/5 — Umm

*2015-04-15*

Really great app but needs negative numbers..that shouldn't be so hard 😬

### 4/5 — Brill

*2015-02-01, version 1.0*

A great tool for the classroom.

### 1/5 — Math1

*2015-01-07*

No negative numbers.  Useless!

## Frequently asked questions about Number Line, by MLC

### What is Number Line used for?

Number Line helps students visualize number sequences and demonstrate strategies for counting, comparing, adding, subtracting, multiplying, and dividing. It's an open-ended educational tool for elementary classrooms.

### What types of numbers can Number Line display?

Number Line can display number lines labeled with whole numbers, fractions, decimals, or negative numbers. You can also use a blank number line with or without tick marks.

### Can I customize the number line in Number Line?

Yes, you can mark the number line with multiples of whole numbers, fractions, or decimals, and set the starting value, including negative values. You can also add custom tick marks and values to blank number lines.

### Does Number Line have drawing and annotation tools?

Yes, Number Line includes drawing and annotation tools to help students show their work and understanding. You can also add equations, expressions, and descriptions using math text and writing tools.

### How can I share my work from Number Line?

You can share your work by saving an image of your number line or by providing a share code to others. This allows for easy collaboration and presentation of student work.

### Is Number Line available on other devices besides iPad?

Based on the provided information, Number Line is designed for iPads and is ideal for learning environments that use this device.

### How often is Number Line updated?

The app was last updated on December 2, 2023, with version 4.2.0. This indicates a relatively recent update, suggesting ongoing support and development.

### What is the user sentiment for Number Line?

Number Line has a high rating of 4.4 stars from 15 ratings, indicating that users generally have a positive experience with the app.

## Version history (last 5 releases)

### 4.2.0 — 2023-12-02

This version introduces a fixed palette with additional drawing and annotation tools: highlighter, rectangular and round shapes, variable line thickness, and arrowheads.

### 4.1.0 — 2022-08-04

4.1.0 Includes improved line setting customization of start and increment values, as well as support for up to 100 segments on the workspace.

### 4.0.1 — 2020-09-09

New features in Version 4:

• Share your work by saving an image or url, or providing a sharing code to others. Great for creating the initial setup of an activity, then sharing it with students so they can explore it further.

• Enter text directly from your keyboard with the new writing tool. Add labels, descriptions, or instructional text to your work.

• More easily edit equations and other math text using a traditional text field.

• Drawings on the workspace stay visible when the drawing palette is closed.

• Hide and reveal jumps, numbers, and other elements with resizable covers. 

____________________

Version 4.0.1 includes a number of improvements and bug fixes.

### 4.0.0 — 2019-11-11

New features in Version 4:
• Share your work by saving an image or url, or providing a sharing code to others. Great for creating the initial setup of an activity, then sharing it with students so they can explore it further.

• Enter text directly from your keyboard with the new writing tool. Add labels, descriptions, or instructional text to your work.

• More easily edit equations and other math text using a traditional text field.

• Drawings on the workspace stay visible when the drawing palette is closed.

• Hide and reveal jumps, numbers, and other elements with resizable covers.

### 3.1.8 — 2017-01-26

More symbols added to the math text tool for writing equations and expressions.

Minor bug fixes.

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## More apps by The Math Learning Center

- [Number Pieces, by MLC](https://appshunter.io/ios/app/number-pieces-by-mlc/id605433778)
- [Math Vocabulary Cards, by MLC](https://appshunter.io/ios/app/math-vocabulary-cards-by-mlc/id828601911)
- [Number Frames, by MLC](https://appshunter.io/ios/app/number-frames-by-mlc/id873198123)
- [Pattern Shapes, by MLC](https://appshunter.io/ios/app/pattern-shapes-by-mlc/id908511013)
- [Money Pieces, by MLC](https://appshunter.io/ios/app/money-pieces-by-mlc/id1055394278)

All apps by The Math Learning Center: https://appshunter.io/developer/1542700905

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-07.*