Developer: Esa Helttula

The Long Division app has been featured by Apple in "New & Noteworthy", "Math - Numbers & Operations", and in "Math Apps for Middle School". Educational App Review (iear.org): "This app is...

This app can be used to teach and study the alternative column-addition method used in the Everyday Mathematics curriculum developed by the University of Chicago School Mathematics Project. The app...

This math app can be used to teach and study the partial quotients division method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings....

This math app can be used to teach and study the column division method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user...

This math app can be used to teach and study the Russian multiplication method. The user can solve random or custom multiplication problems. The number of digits in the numbers can be set....

This math app can be used to teach and study the equal addition subtraction method. The user can solve random or custom subtraction problems with small and large numbers. The number of digits in...

Wired.com: "It’s fantastic for helping kids (and grown-ups) practice polynomial manipulation and division. I can’t recommend Esa’s math apps enough."

With the Polynomial Long Division app...

With the Polynomial Addition and Subtraction app you can practice adding and subtracting polynomials with a step-by-step method. And you can get additional help at each step.

The app saves...

This math app can be used to teach and study the rounding of decimals. You can set your own problems or solve random problems. The decimal numbers can be rounded to nearest whole number, tenth,...

This math app can be used to teach and study the partial products multiplication method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other...

The Fraction Math app can be used to teach and study fractions by solving addition, subtraction, division and multiplication problems with fractions step by step. Wired.com: "Quite a useful app for...

This math app can be used to teach and study the column addition method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user...

This app can be used to teach and study the trade-first subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The...

This app can be used to teach and study the partial sums addition method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The user...

This math app can be used to teach and study the rounding of whole numbers. You can set your own problems or solve random problems. The numbers to be rounded can have up to 8 digits.

The...

This universal app is part of a set of idevbooks math apps. Reviewed by Wired.com: "A Set of Excellent iPhone Math Apps for the Older Child”.

The Long Multiplication math app can be used...

This math app can be used to teach and study the column subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings. The...

This math app can be used to teach and study the grid multiplication method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings....

This math app can be used to teach and study the left-to-right subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other settings....

This app can be used to teach and study the ancient lattice multiplication method. Solving lattice multiplication problems is also excellent times tables practice. The app is very easy to use and...

This app can be used to teach and study the ancient Egyptian multiplication method.

The Egyptian Multiplication Method

Ancient Egyptians were able to multiply any two numbers by...

This math app can be used to teach and study the partial differences subtraction method. The app is easy to use and it has an intuitive interactive interface with customizable colors and other...

Explore and learn the multiplication table in a visual way. Wired.com: "I highly recommend it for any kid who is learning their multiplication tables".

Four different ways to study the...

This math app is about visually exploring how percentages and decimals are just special kinds of fractions with their own notation. There are no tasks to complete or problems to solve. The purpose...

With the Polynomial Multiplication app you can practice multiplying polynomials with a step-by-step method. And you can get additional help at each step.

The app saves your most recent...