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Westerville, OH 43086

Peekaboo Studios LLC is an educational app developer based in Central Ohio with a focus on creating apps aligned with Common Core State Standards for PreK-12. When time permits, we like to go back to our roots and make games too!


MathEdge Addition & Subtraction

"My daughter loves this app. She is able to practice her addition and subtraction on her own during our commute. Thank you!"

I will never forget how quickly my son was able to pick up the concept of subtracting using this app.

To learn addition and subtraction with a step-by-step guide, there's no other app like MathEdge!


- Addition step-by-step guide

- Addition flash cards: easy, medium, and hard

- Subtraction step-by-step guide

- Subtraction flash cards: easy, medium, and hard

- Audio instructions

- Caters to both left and right handed children

- Great for classrooms or at home

• Practice with a set of addition or subtraction flash cards to exercise and improve your math smarts. 

• Choose between a right-handed or left-handed layout for ease of use. 

• See how to properly arrive at each answer with a guided step-by-step experience that teaches valuable math skills such as "carrying the one" and "borrowing."

"It teaches how to add the single digits of numbers, carry the one if needed, and then add the left column to arrive at the final answer. It's a simple way to teach math step by step." - Kate Archer, parent

"This is a really great app. I love the fact that it talks the student through the problems. This is especially helpful in helping a student to stay on task. The voice is very kind and encouraging." - Marian Williams, ADD Mom and Special Educator

Recommended Ages: 8-10 

Categories: Math, Addition, Subtraction