What's New

This app has been updated by Apple to use the latest Apple signing certificate.

Your favourite app is back with its original look!

App Description

Designed by teachers and Award winning app developers, Montessori Math: Add & Subtract Large Numbers presents an in-depth, step-by-step approach to these two essential operations. It also presents fundamental Montessori materials: the stamp game and the bead frame.
More importantly, this app makes the concepts of “exchanging” (carrying/borrowing) so obvious that even adults will be surprised.
Features:
- Our exclusive Dynamic Progression Algorithm to follow each child’s progress individually.
- 4 pre-determined levels.
- Color-coded place values to allow children to easily identify thousands, hundreds, tens and units.
- 3 activities to learn: the stamp game, the bead frame and the magic slate.
- 3 games to practice: Missing Digits, Wiz Quiz and Bubble Game.
- A number range from 0 to 9,999.
- A “Monster lab” for added fun and motivation.
- “Advanced settings” containing even more options.
- A detailed "Note to parents" explaining the pedagogy behind each game.
- 15 languages
- Retina display.
- Universal app (iPhone, iTouch, iPad, iPad Mini).

If you like Montessori Math: Add & Subtract Large Numbers, you will also like our other educational apps: http://edokiacademy.com

Recommended ages: From 6 to 9

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 Math: Add & Subtract Large Numbers screenshot 1 Montessori Math: Add & Subtract Large Numbers screenshot 2 Montessori Math: Add & Subtract Large Numbers screenshot 3 Montessori Math: Add & Subtract Large Numbers screenshot 4 Montessori Math: Add & Subtract Large Numbers screenshot 5

iPad Screenshots

(click to enlarge)

Montessori Math: Add & Subtract Large Numbers screenshot 6 Montessori Math: Add & Subtract Large Numbers screenshot 7 Montessori Math: Add & Subtract Large Numbers screenshot 8 Montessori Math: Add & Subtract Large Numbers screenshot 9 Montessori Math: Add & Subtract Large Numbers screenshot 10

App Changes

  • July 11, 2013 Initial release
  • July 18, 2013 New version 1.1
  • July 27, 2013 Price decrease: $4.99 -> $1.99
  • August 05, 2013 Price increase: $1.99 -> $2.99
  • August 11, 2013 Price increase: $2.99 -> $3.99
  • August 13, 2013 Price increase: $3.99 -> $4.99
  • August 30, 2013 Price decrease: $4.99 -> $2.99
  • September 05, 2013 Price increase: $2.99 -> $4.99
  • September 19, 2013 Price decrease: $4.99 -> $1.99
  • October 10, 2013 Price increase: $1.99 -> $2.99
  • October 15, 2013 New version 1.2
  • November 19, 2013 Price increase: $2.99 -> $3.99
  • November 29, 2013 Price decrease: $3.99 -> FREE!
  • November 30, 2013 Price increase: FREE! -> $1.99
  • December 02, 2013 Price increase: $1.99 -> $2.99
  • December 05, 2013 Price increase: $2.99 -> $3.99
  • April 10, 2014 Price decrease: $3.99 -> FREE!
  • April 12, 2014 Price increase: FREE! -> $3.99
  • April 29, 2014 Price decrease: $3.99 -> $2.99
  • May 05, 2014 Price increase: $2.99 -> $3.99
  • June 04, 2014 New version 1.3
  • January 27, 2015 New version 1.4.1
  • September 13, 2015 Price increase: $3.99 -> $4.99
  • December 05, 2015 New version 1.4.2
  • July 01, 2016 New version 1.5.0
  • June 13, 2019 Price decrease: $4.99 -> $3.99
  • June 14, 2019 Price decrease: $4.99 -> $3.99
  • June 14, 2019 Price decrease: $4.99 -> $3.99
  • June 15, 2019 Price decrease: $4.99 -> $3.99
  • June 15, 2019 Price decrease: $4.99 -> $3.99
  • June 15, 2019 Price decrease: $4.99 -> $3.99
  • June 16, 2019 Price decrease: $4.99 -> $3.99