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Would you like to improve your mental math
skills? Would you like to learn how to solve difficult math problems with ease and impress yourself and your friends
with your math skills? With this app you will not only train your brain by solving math problems, you will also learn
special mental math tricks.

For many math problems, special tricks exist that make solving these much easier. It
is important to know when to use which trick, but also how to solve a math problem if none of these special tricks can
be used.

This app contains 35 lessons (with up to 3 tricks per lesson) where you will learn tips and tricks for
the following types of math
problems:

-Addition

-Subtraction

-Multiplication

-Division

-Divisibility

-Remainders

-Squaring

-Square
and cube roots

-Calculate the weekday for any date

You will not only learn the special tricks, but also more
general solutions.

In the second part of this app, the training, you can solve random math problems with
increasing difficulty. The goal here is not only to become better and faster at solving math problems, you will also
learn to detect which trick would be the best for the current math problem. This is why there is a help button in the
training-section. If you push this button, the application will search for the trick or tip that is possibly the easiest
for solving the current math problem.

Additional features:

-Two languages: All texts are in english and
german.

-User management: Multiple users can use the same device. The application saves the settings and position in
the training for each user separately.

-Two different GUI-designs: Use a blue background with white text in sci-fi
movie style. Or switch to a simple white paper background with black
text.

Lessons:

Introduction

Addition

Subtraction

Single digit multiplications

x 10 and x 5

x 2,
x 4 and x 8

x 9 and x 3

x 6 and x 7

x 11 and x 12

Multiplication of numbers between 11 - 19 and between 91 -
99

Multiplication of numbers close to a power of 10

Multiplication of numbers close to multiples of 100 or
1000

Multiplying numbers with two different bases

Multiplication of 2 digit numbers

Multiplication of 3 digit
numbers

x 111, x 21 and x 121

x 101 and x 1001

x 15, x 25 and x 50

x 95 and x 125

x 2-digit numbers that
end in 5 and x 50 to 59

x 99, x 999 and x 999999…

x 19 and x 2-digit numbers that end in 9 (including a special
case)

÷ 10, ÷ 5 and ÷ 4

÷ 9 and ÷ 8

Division: Remainders method

General division method

Divisibility by
2, 5 and 10

Divisibility by 9, 3 and 6

Divisibility by 4, 8 and 7

Divisibility by 11, 12 and 13

Remainder
when dividing by 2, 5 and 10

Remainder when dividing by 3, 9 and 6

Remainder when dividing by 4 and 8

Remainder
when dividing by 7 and 11

Squaring 1 to 29

Squaring numbers ending with 5, and 50 to 59

Squaring 26 to
125

Squaring numbers close to 1000, and general squaring method

Squaring numbers ending with 1 or with
25

Squaring numbers ending with 9 or that have only 9s

Perfect cube root

Perfect cube root of numbers between
100 and 200

Perfect square root

Day for any date