one   = [UIImage imageNamed:@"1.png"]; //Image for the number 1
two   = [UIImage imageNamed:@"2.png"]; //Image for the number 2
three = [UIImage imageNamed:@"3.png"]; //Image for the number 3

NSString *score = "132"; //This is the score the user got

if ([score rangeOfString:@"1"].location == NSFound) {
    imagescore = one; //If the score contains one, the image adds the image 1
}
if ([score rangeOfString:@"2"].location == NSFound) {
    imagescore += two; //If the score contains two, the image adds the image 2
}
if ([score rangeOfString:@"3"].location == NSFound) {
    imagescore +=three; //If the score contains two, the image adds the image 3
}
imageView.image = imagescore; //Would change the image to the images of the score in order

-(void)calculateScore{
    NSString *score = @"132";

    UIImage *scroreImage = [UIImage new];
   // NSMutableArray *images = [[NSMutableArray alloc]initWithCapacity:score.length];

    for (int i = 0; i < score.length; i++) {
       // imageName will be @"1", then @"3" and @"2"
        NSString *imageName = [[score substringToIndex:i] substringToIndex:1];

       // add extension
       imageName = [imageName stringByAppendingString:@".png"];

       UIImage *image = [UIImage imageNamed:imageName];

       //[images addObject:image];
       scroreImage = [self concateImageOne:scroreImage withImageTwo:image]
    }
}

-(UIImage*)concateImageOne:(UIImage*)image1 withImageTwo:(UIImage*)image2
{
     ///Merge images together
}

-(UIImage*)concateImageOne:(UIImage*)image1 withImageTwo:(UIImage*)image2
{
  CGSize size = CGSizeMake(image1.size.width, image1.size.height + image2.size.height);
  UIGraphicsBeginImageContext(size);

  [image1 drawInRect:CGRectMake(0,0,size.width, image1.size.height)];
  [image2 drawInRect:CGRectMake(0,image1.size.height,size.width, image2.size.height)];

  UIImage *finalImage = UIGraphicsGetImageFromCurrentImageContext();

  UIGraphicsEndImageContext();
  return finalImage;
}

if ([score rangeOfString:@"1"].location == NSFound) {
    if (!imagescore)
        imagescore = one; //If the score contains one, the image adds the image 1
    else
        imagescore = [self concateImageOne:imagescore withImageTwo:one]
}

UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, imagescore.size.width, imagescore.size.height)];
imageView.image = imagescore;

- (NSArray *)imageFromString:(NSString *)scoreString
{
    NSMutableArray *scoreImages = [[NSMutableArray alloc] init];
    for (int i = 0; i < scoreString.length; i++) {
        NSString *imageName = [NSString stringWithFormat:@"%c.png", [scoreString characterAtIndex:i]];
        UIImage *image = [UIImage imageNamed:imageName];
        [scoreImages addObject:image];
    }
    return scoreImages;
}

-(void)calculateScore {
    int hundred = self.score / 100;
    int ten = self.score / 10;
    int remainder = self.score % 10;

    NSString *hundredString = [NSString stringWithFormat:@"number_%d.png", hundred];
    NSString *tenString = [NSString stringWithFormat:@"number_%d.png", ten];
    NSString *remainderString = [NSString stringWithFormat:@"number_%d.png", remainder];

    self.hundredImageView.image = [UIImage imageNamed:hundredString];
    self.tenImageView.image = [UIImage imageNamed:tenString];
    self.remainderImageView.image = [UIImage imageNamed:remainderString];
}