## E – directory of the existing mobile apps

The main aim of this e-Directory is to provide learners with the opportunity for initial self-training in order to improve their mathematical skills by using an innovative Mobile Apps approach.

This e-Directory consists of the set of 12 selected Mobile Apps for Androids and provides two main possibilities to arrange learners’ self-training process:

**If you know the mathematical skills you want to improve, the system can suggest you the relevant Mobile Apps to perform. To proceed with this learning pathway, please select the skills from the table click here.****If you want to use a specific Mobile App, please select the Mobile App click here.**

#### Mathematical skills

#### List of apps related to chosen skills

#### Mobile App

**Elementary Arithmetic**

This app enables you to strengthen your skills to:

- Perform addition
- Perform subtraction
- Perform multiplication
- Perform division

**Division Calculator**

This app enables you to strengthen your skills to:

- Perform addition
- Perform subtraction
- Perform multiplication
- Perform division
- Operate with whole numbers
- Operate with decimal fractions

**All-In-One Calculator**

This app has a simple and clear layout. You can create your favourite list of formulas for quick access. It is a useful app for M-Easy learners as in some cases it also provides explanations of the solution process. As an additional value for your daily life you can find a currency converter with 160 currencies (in the finance part), or count your body fat percentage or daily caloric burn (in the health part), etc.

The algebra part enables you to strengthen your skills to:

- Calculate percentage
- Operate with fractions
- Operate with decimal fractions
- Understand proportions

- Recognize different geometrical shapes: rectangle, square, triangle, circle, pyramid, cuboid, cube, sphere
- Calculate perimeter of rectangle, square, triangle
- Calculate perimeter of circle
- Calculate area of rectangle & square
- Calculate area of triangle
- Calculate area of circle
- Calculate volume of cuboid & cube
- Calculate volume of cylinder
- Calculate volume of sphere
- Calculate volume of pyramid

- Work with different measures - millimetres, centimetres, meters, inches, yards, etc.

**Math Tricks**

The free version of the program allows mainly using exercises from the lowest level of difficulty.

This app enables you to strengthen your skills to:

- Perform addition
- Perform subtraction
- Perform multiplication
- Perform division
- Calculate percentage
- Calculate square numbers

**Math Flash Cards**

We suggest for learners to start with starting in the settings where you can:

- Choose the single math skill you want to improve (by clicking +, -, x or ÷ ).
- Or alternatively, choose the option to perform addition and subtraction or multiplication and division together (by clicking Ø between + and - or between x and ÷).
- Top set and Bottom set allows you to edit the numbers which will appear for practice, however, we suggest that you simply choose the option All.
- The part Cards allows you to define the number of practical exercises you want to do - 20, 50, or 100.
- The part Timer minutes allows you to define the time during which you want to perform all planed practical exercises (one or more minutes). After the time is finished you will get the results achieved within the established time period together with a scoring of the correct and incorrect answers.
- We suggest you to mark Random cards- this way you will get exercises with various numbers selected randomly by the system.
- Choose Show correct answer if you want to get help if your answer is incorrect.
- We suggest you to mark Allow three tries as it will give you the possibility to try three times to get the answer right in case you fail. This is definitely a good tool to improve your mathematical skills.

This app is free of charge, but there is also a paid version which provides additional solutions.

This app enables you to strengthen your skills to:

- Perform addition
- Perform subtraction
- Perform multiplication
- Perform division

**Math Fraction DR**

When started, you find instructions for an action with a fraction. In the field ? you write the step by step answers regarding fraction solution.

It is possible to choose Next Quiz 1, Help or Reset in the case you have difficulties with calculating. Also you can check and even save your completed tasks and achievements in the section Report. The Esc key leads back to the previous page.

This app enables you to strengthen your skills to:

- Perform addition
- Perform subtraction
- Perform multiplication
- Perform division
- Operate with fractions

**Math Long Multiplication**

The app is smart: it tries to understand your mistakes and gives you appropriate indications. You can get motivated by the scores it gives for your performance.

This app enables you to strengthen your skills to:

- Perform multiplication

**Area Figures**

For M-Easy learners the app helps to strengthen their skills to:

- Recognize different geometrical shapes: rectangle, square, triangle, circle, pyramid, cuboid, cube, sphere
- Calculate area of rectangle & square
- Calculate area of triangle
- Calculate area of circle

**Loan Calculator IQ**

Loan Calculator IQ is useful for anyone who wishes to take up a mortgage from the bank, loan money to purchase a car or simply lend money to a friend.

This app enables you to strengthen your skills to

- Calculate percentage

**Khan Academy**

You can learn about every topic in maths via attractive, visualized and informative theoretical presentations in the Explore part, or practice in the part Practice. You can also perform a learning journey starting with Quiz 1 to identify your areas for growth. It is a knowledge assessment tool, that automatically recommends you lessons for exactly what you need to learn. You will find learning material and relevant exercises and quizzes for your learning, as well as the Unit test for evaluation of your learning achievements.

Here you will find:

- Videos and explanations at your fingertips in math, science, economics, history, and much more.
- Interactive Common Core aligned practice questions that are included with instant feedback and step-by-step hints. You can follow along with what you’re learning or practice at your own pace.
- Redesigned navigation and search option that make it faster to find what you want.
- Possibility to learn even when you’re offline while bookmarking your favourite content to “Your List” for easy access, and downloading it to keep learning even when you’re not connected to the internet.
- Possibility to pick up where you left off - your learning syncs between your Android and khanacademy.org, so your progress is always up-to-date.

This app enables you to strengthen your skills to:

- Perform addition
- Perform subtraction
- Perform multiplication
- Perform division
- Calculate percentage
- Operate with whole numbers
- Recognise different geometrical shapes: rectangle, square, triangle, circle, pyramid, cuboid, cube, sphere
- Calculate perimeter of rectangle, square, triangle
- Operate with whole numbers
- Calculate area of rectangle & square
- Calculate area of triangle
- Calculate area of circle
- Calculate volume of cuboid & cube
- Calculate volume of cylinder
- Calculate volume of sphere
- Calculate volume of pyramid
- Operate with fractions
- Operate with decimal fractions
- Perform rounding
- Compare numbers
- Understand analogue clock
- Understand proportions
- Calculate square numbers
- Calculate square roots
- Extrapolation of data from charts, statistics

**Math Formulas Free**

The algebra part helps to strengthen your skills to understand how to use formulas to:

- Operate with fractions

- Calculate perimeter of rectangle, square, triangle
- Calculate perimeter of circle
- Calculate area of rectangle & square
- Calculate area of triangle
- Calculate area of circle
- Calculate volume of cuboid & cube
- Calculate volume of cylinder
- Calculate volume of sphere
- Calculate volume of pyramid

- Understand different measuring systems (metric, imperial, etc.)
- Work with different measures (millimeters, centimeters, meters, inches, yards, etc.)

**Complete Mathematics**

This app enables you to strengthen your skills to:

- Work with different measures (millimetres, centimetres, metres, inches, yards, etc.)
- Operate with whole numbers
- Recognize different geometrical shapes: rectangle, square, triangle, circle, pyramid, cuboid, cube, sphere;
- Calculate perimeter of rectangle, square, triangle;
- Calculate perimeter of circle;
- Calculate area of rectangle & square;
- Calculate area of triangle;
- Calculate area of circle;
- Calculate volume of cuboid & cube;
- Calculate volume of cylinder;
- Calculate volume of sphere;
- Calculate volume of pyramid;