Solutions: Number Variables

- (NSInteger) increaseNumberBy1:(NSInteger) number {
    return number + 1;
}

- (NSInteger) addNumber:(NSInteger) number1 toNumber:(NSInteger) number2 {
    return number1 + number2;
}

- (NSInteger) remainderOfNumber:(NSInteger) dividend dividedByNumber:(NSInteger) divisor {
    return dividend % divisor;
}