Esa Helttula

Long Multiplication

Paid

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...

Partial Products Multiplication

Paid

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...

Column Division

Paid

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...

Column Addition

Paid

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...

Trade-First Subtraction

Paid

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...

Left-to-Right Subtraction

Paid

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...

Long Division

Paid

The Long Division app has been featured by Apple in "New & Noteworthy", "Math - Numbers & Operations", and in "Math Apps for Middle School"....

Partial Differences Subtraction

Paid

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...

World Factbook Visual Edition

Paid

The World Factbook Visual Edition has information on the people, society, government, economy, geography, communications, transportation, military,...

Lattice Multiplication

Paid

This app can be used to teach and study the ancient lattice multiplication method. Solving lattice multiplication problems is also excellent times...

Partial Sums Addition

Paid

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...

Everyday Column-Addition

Paid

This app can be used to teach and study the alternative column-addition method used in the Everyday Mathematics curriculum developed by the...

Partial Quotients Division

Paid

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...

Fraction Math

Paid

The Fraction Math app can be used to teach and study fractions by solving addition, subtraction, division and multiplication problems with...

Opposite-Change Addition

Paid

This app can be used to teach and study addition using the opposite-change rule. The app is easy to use and it has an intuitive interactive...

Same-Change Subtraction

Paid

This app can be used to teach and study subtraction using the same-change rule. The app is easy to use and it has an intuitive interactive...

Grid Multiplication

Paid

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...

Decimal Rounding

Paid

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...

Russian Multiplication

Paid

This math app can be used to teach and study the Russian multiplication method. The user can solve random or custom multiplication problems. The...

Whole Number Rounding

Paid

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...

Visual Multiplication Table

Paid

This app can be used to explore and learn the multiplication table in a visual way that increases intrinsic motivation. Wired.com: "I highly...

Visual Fractions Decimals and Percentages

Paid

This math app is about visually exploring how percentages and decimals are just special kinds of fractions with their own notation. There are no...

Order of Operations by iDevBooks

Paid

This math app is about the concept of order of operations. The user can evaluate random and custom expressions with exponentiation, division,...

Egyptian Multiplication Method

Paid

This app can be used to teach and study the ancient Egyptian multiplication method. The Egyptian Multiplication MethodAncient Egyptians were able...