What's New

This app has been updated by Apple to display the Apple Watch app icon.

Fun new games, an incredible monster lab and connexion to our parental dashboard!

App Description

An Amazing app dedicated to the discovery of additions & subtractions, for children 5 to 8 years!
- Featured in iTunes!

Want to build a solid math foundation for your children? 
 Montessori 1st Operations is a revolutionary app allying a 100 year old proven pedagogy with the best of 21st Century technology and fun monsters to introduce 4 very important concepts (addition, subtraction, doubles/halves, odd/even).

It offers a clear and simple approach to first operations that will change the way children see math forever, whether they use it in class or at home. We've implemented a dynamic progression algorithm that follows each user's progress and adapts the games according to their level.

Recommended ages: 5 to 8


Key Features:
- Play with Montessori materials: number rods and counters
- Learn Math on an interactive app with charming graphics!
- Master on addition and subtraction through a natural progression with numbers from 1 to 99!
- Get into multiplication and division using the concepts of double and half!
- Launch the playbox, who contains lots of games!
- Have fun with the “Monster lab”, creating your own monster !

• Designed by teachers.
• Safe for kids! Absolutely no third-party ads!

Download 1st Operations now, and be ready to become unbeatable at math!

If you like Montessori First Operations, you will also like our other educational apps: http://edokiacademy.com.

If you have questions or comments on our app, please email us at: [email protected] as 
we cannot answer reviews left in iTunes.

KNOW WHAT'S INSIDE
As a MOMs with Apps member, we follow the "Know what's inside" best practices for kids’ apps


We take personal data protection very seriously. When using our app, your child will never come across:
- advertising
- in-apps
- links to social networks
- personal data request

iPhone Screenshots

(click to enlarge)

Montessori 1st Operations - addition & subtraction made simple screenshot 1 Montessori 1st Operations - addition & subtraction made simple screenshot 2 Montessori 1st Operations - addition & subtraction made simple screenshot 3 Montessori 1st Operations - addition & subtraction made simple screenshot 4 Montessori 1st Operations - addition & subtraction made simple screenshot 5

iPad Screenshots

(click to enlarge)

Montessori 1st Operations - addition & subtraction made simple screenshot 6 Montessori 1st Operations - addition & subtraction made simple screenshot 7 Montessori 1st Operations - addition & subtraction made simple screenshot 8 Montessori 1st Operations - addition & subtraction made simple screenshot 9 Montessori 1st Operations - addition & subtraction made simple screenshot 10

App Changes

  • May 10, 2013 Initial release
  • May 15, 2013 Price increase: $2.99 -> $3.99
  • July 16, 2013 New version 1.2
  • July 27, 2013 Price decrease: $3.99 -> $1.99
  • August 05, 2013 Price increase: $1.99 -> $2.99
  • August 11, 2013 Price increase: $2.99 -> $3.99
  • August 30, 2013 Price decrease: $3.99 -> $0.99
  • September 03, 2013 Price increase: $0.99 -> $1.99
  • September 05, 2013 Price increase: $1.99 -> $4.99
  • September 11, 2013 New version 1.3
  • September 19, 2013 Price decrease: $4.99 -> $1.99
  • October 10, 2013 Price increase: $1.99 -> $2.99
  • November 18, 2013 Price increase: $2.99 -> $3.99
  • December 20, 2013 Price decrease: $3.99 -> $1.99
  • January 05, 2014 Price increase: $1.99 -> $2.99
  • January 17, 2014 Price increase: $2.99 -> $3.99
  • January 22, 2014 Price decrease: $3.99 -> $1.99
  • January 25, 2014 Price increase: $1.99 -> $3.99
  • April 28, 2014 Price decrease: $3.99 -> $2.99
  • May 06, 2014 Price increase: $2.99 -> $3.99
  • June 28, 2014 New version 1.4
  • December 18, 2014 New version 1.4.1
  • December 06, 2015 New version 1.4.2
  • July 03, 2016 New version 1.4.3