Opening the iTunes Store.If iTunes doesn't open, click the iTunes application icon in your Dock or on your Windows desktop.Progress Indicator
Opening the iBooks Store.If iBooks doesn't open, click the iBooks app in your Dock.Progress Indicator

iTunes is the world's easiest way to organize and add to your digital media collection.

We are unable to find iTunes on your computer. To buy and download Teachley: Mt. Multiplis by Teachley, get iTunes now.

Already have iTunes? Click I Have iTunes to open it now.

I Have iTunes Free Download
iTunes for Mac + PC

Teachley: Mt. Multiplis

By Teachley

Open iTunes to buy and download apps.


Winner of Editor's Choice Award - Children's Technology Review and Parent's Choice Award!

Mt. Multiplis, optimized for schools, allows teachers to create or log in to their free classroom accounts, appropriately adapts to each child, and is CCSS-aligned.

What are people saying?
“Mt. Multiplis is not just focused on getting the answer, but also understanding the process of multiplication and the strategies that kids need to develop. I love how this app supports my students’ thinking in a way no other app does.” - Alana S., K-5 Special Education Teacher

“I really like how Mt. Multiplis combines the area model and the number line. It’s helped my students demonstrate their understanding across representations.” - Yvette B., 3rd grade teacher

About the game:
Linka gets caught in a terrible storm while flying home after a successful treasure hunt. She escapes but her plane isn’t as lucky. Help Linka make her way through Mt. Multiplis by building bridges, unlocking treasure, and earning gems. Rebuild Linka’s plane by collecting the pieces from the greedy Crags who live on the island.

Developed by teachers and experts in children’s cognition and learning, Mt. Multiplis is an engaging game that teaches multiplication through the commutative and distributive properties. While most multiplication apps focus on drill with digital worksheets and flashcards, Mt. Multiplis scaffolds learning to promote conceptual understanding, efficiency with multiplication strategies, and fact fluency.

The Common Core State Standards expect third graders to use the distributive property when multiplying (CCSM.3.OA.B.5): “Knowing that 8 × 5 = 40 and 8 × 2 = 16, one can find 8 × 7 as 8 × (5 + 2) = (8 × 5) + (8 × 2) = 40 + 16 = 56.” Mt. Multiplis is designed to make this complex content more approachable and fun for kids. Students can think strategically, seeing how 7 x 8 is the same as 5 groups of 8 plus 2 more groups of 8.

Supports Response to Intervention programs:
Mt. Multiplis is a great tool for classroom teachers looking to differentiate instruction for students. The app is also great for parents who want to support their children’s learning.

Recommended Grades: 3rd-5th (6th-8th intervention)

Meets Common Core Math Standards:
-3.OA.A.1 -3.OA.A.3 -3.OA.A.7 -3.OA.B.5

About Teachley:
Founded by former teachers, Teachley uses cognitive science research to create apps that teach effective learning strategies and assess what kids know within engaging games. Our team includes experts in cognition and learning, award-winning creative talent and game designers.

*This app was made possible by the US Department of Education, with funding provided by the Institute of Education Sciences’ SBIR program.

What's New in Version 2.1

Important update for saving students' progress when using classroom functionality.
Improved graphics.

iPad Screenshots

iPad Screenshot 1
iPad Screenshot 2
iPad Screenshot 3
iPad Screenshot 4
iPad Screenshot 5

Customer Reviews

Extra Fees

Decent enough apps that help kids learn addition but don't expect to be able to see why progress your child is making as a to her or parent unless you anty up a ridiculous monthly subscription fee. There is no way to check on your child's progress with math facts unless you pay for their reports. This should be included in the cost of the app. Addition is free but their other apps cost and you can't review any reports unless you pay even more on top of the original app fee.

Teachley: Mt. Multiplis
View In iTunes
  • $2.99
  • Category: Education
  • Updated:
  • Version: 2.1
  • Size: 158 MB
  • Language: English
  • Seller:
Rated 4+
  • Made for Ages 9–11

Compatibility: Requires iOS 6.0 or later. Compatible with iPad.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
All Versions: