#include
using namespace std;
int main()
{
float a,b,answer;
int choose;
cout << "Введите значение a: ";</p>
cin >> a;
cout << "Введите значение b: ";</p>
cin >> b;
cout << "Выберите математическое действие:\n1)+\n2)-\n3)*\n4)/";</p>
cin >> choose;
switch (choose)
{
case(1):
answer=a+b;
break;
case(2):
answer=a-b;
break;
case(3):
answer=a*b;
break;
case(4):
answer=a/b;
break;
}
cout << "Calculated completed:" << a << "+"<< b << "=" << answer << endl;</p>
return 0;
}