Учимся считать быстро и без ош

The second part came out: https://play.google.com/store/apps/details?id=com.vgtrofimov.calcuman2

Breakthrough in the area of ​​approach to calculators. What does a regular calculator do? Yes, he thinks for us in the old fashioned way! A bold step forward to the future and start counting as a calculator!

The program-simulator account "in mind", the operation of addition and subtraction. And:
- adjustable number of digits: from 1 to 4;
- there is time to think;
- no prompts, decide for yourself;
- really increases the accuracy of calculations "in mind";
- an excellent simulator for exam preparation, where you need to count;
- Let pupils of elementary grades learn to count! And if the ratio of correct answers and errors is 1/2, let him clean the apartment;
- etc.

And what else you can:
- ask a friend to calculate something using this calculator, the friend will be pleasantly surprised;
- not a very sad joke on April 1;
- beautiful buttons in the style of "all ingenious - just";
- a minimum of resources;
- Do not count sheep before bedtime! Consider the numbers, the digital era is the same, go to sleep and do not notice ...;
- you can really increase the level of add and subtract.

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