The “Mental Arithmetic" is a dynamic math workout with very flexible settings and detailed statistics. It will be useful for both adults and children because mental math is a great brain workout at any age!

What makes a workout dynamic?
★ The answers can be selected instead of entering by digits
★ For each correctly solved task, points are awarded. If you answer quickly, you will also get a bonus points for speed

What makes customization flexible?
★ you can train one or several operations (addition, subtraction, multiplication, division, degree)
★ you can use the standard settings for numbers (one-digit, two-digit, etc.), or you can set your custom range
★ training duration can be limited: 10, 20, 30, ... 120 seconds, or you can play as long as you want
★ the number of tasks can be limited: 10,15, 20, ... 50, or you can solve tasks until you get bored
★ you can choose the number of answers: 3, 6, 9, or you can enter the answer by digits

What are statistics for?
All workouts are saved. You can always check workout settings, tasks and your answers. For example, you can set a workout for your child and then check results. Unliked workouts can be deleted. Important workouts can be marked with a bookmark.

There are many training options. Here are some ideas:
★ addition and subtraction of single-digit numbers, range of result from 0 to 9, 3 answer options, 10 tasks, time unlimited
★ addition and subtraction of two-digit numbers, range of result from 10 to 50, 6 answer options, no limits, train until you get bored
★ addition and subtraction of two-digit numbers, 6 answer options, 10 tasks, duration 20 seconds
★ multiplication of single-digit numbers (multiplication table), 6 answer options, 30 tasks, time unlimited
★ multiplication table, 6 answer options, tasks unlimited, duration 60 seconds
★ multiplication and division of two-digit numbers by single-digit numbers, 6 answer options, 50 tasks, time unlimited
★ multiplication and division of three-digit numbers by 5, no limits
★ subtraction of negative two-digit numbers, 9 answer options, 20 tasks, time unlimited

For whom?
★ Kids. Master the basics of arithmetic. Learn a multiplication table. It is recommended to set a minimum of answer options and do not limit duration. But the number of tasks can be limited, for example: solve 30 tasks for addition and subtraction.
★ Pupils and students. For everyday math practice. Time limits can be switched on, this exert pressure and makes the game sharper. The number of answer options must be set to 6, 9 or input by digits.
★ Adults who want to quickly solve in mind or just keep their brain in good shape.

A bit more ideas for students and adults.
★ train speed: solve as many tasks as you can in 10, 20, … ect. seconds
★ train endurance: solve as much tasks as you want without time limit
★ improve result: solve 10, 20, ect. tasks as fast as you can, then compare with previous workout (from statistics)