30 arithmetic problems in the second grade

Ideas: (1) generate two random numbers within 1-100 and randomly arithmetic;

(2) The loop is carried out 30 times, producing 30 questions;

(3) in the second grade, did not learn the score and negative, the meiosis is less than or equal to be meiosis.

SOURCE program code:

#include "stdafx.h"

#include "iostream.h"

#include "Stdlib.h"

#include "math.h"
#include "time.h"

int main (int argc, char* argv[])

{

int A, B;

int m;

Srand ((unsigned) time (NULL));

for (int i=1;i<=30;i++)

{

A=rand ()%100;

B=rand ()%100;

M=rand ()%4;

Switch (m)

{

Case 0:

cout<<i<< "" <<a<< "+" <<b<< "=" <<endl;

Break

Case 1:

if (a>=b)

{

cout<<i<< "" <<a<< "-" <<b<< "=" <<endl;

Break

}

Case 2:

cout<<i<< "" <<a<< "x" <<b<< "=" <<endl;

Break

Case 3:

cout<<i<< "" <<a<< "/" <<b<< "=" <<endl;

Break

}

}

return 0;

}

The results are as follows:

30 arithmetic in second grade