struct opgave genereer_opgave(void){

	struct opgave blok;
	int getal1,getal2,oplossing;
	char operand;

	do{
		getal1 = geef_random_getal(0,10);

	}while(zit_in_getallen(getal1));
	
	do{
		getal2 = geef_random_getal(0,10);
	}while(zit_in_getallen(getal2));

	do{	
	operand = geef_random_bewerking();
	}while(!heeft_gehele_oplossing(getal1,getal2,operand));

	
	switch(operand){

	case '*': oplossing = getal1*getal2;
		break;
	case '/': oplossing = (int) getal1/getal2;
		break;
	case '+': oplossing = getal1 + getal2;
		break;
	case '-' oplossing = getal1 - getal2;
		break;
	default: oplossing = -1;
		break;

	}

	blok.getal1 = getal1;
	blok.getal2 = getal2;
	blok.operand = operand;
	blok.oplossing = oplossing;

	return blok;

}