Esa Helttula

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...

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"....

Fraction Math

Paid

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

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...

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...

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...

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...

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...

Equal Addition Subtraction

Paid

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...

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...

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...

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...