diff --git a/Makefile b/Makefile
index 96cf167..b2a080e 100644
--- a/Makefile
+++ b/Makefile
@@ -102,7 +102,11 @@ SRCS	=	ft_memset.c \
 			ft_next_word.c \
 			ft_convert.c \
 			ft_flag_transform.c \
-			ft_flag_transform_bonus.c
+			ft_flag_transform_bonus.c \
+			ft_abs.c \
+			ft_greater.c \
+			ft_smaller.c \
+			ft_sign.c
 
 
 ODIR	=	./builds
diff --git a/includes/libft.h b/includes/libft.h
index e4f4338..3712b93 100644
--- a/includes/libft.h
+++ b/includes/libft.h
@@ -107,6 +107,10 @@ void				ft_putnbrendl(int n);
 void				ft_putnbrendl_fd(int n, int fd);
 int					ft_get_next_line(const int fd, char **line);
 char				*ft_concat_free(char *str1, char *str2);
+int					ft_abs(int n);
+int					ft_greater(int a, int b);
+int					ft_smaller(int a, int b);
+int					ft_sign(int i);
 
 
 
diff --git a/srcs/ft_abs.c b/srcs/ft_abs.c
new file mode 100644
index 0000000..3cdb51f
--- /dev/null
+++ b/srcs/ft_abs.c
@@ -0,0 +1,8 @@
+#include "libft.h"
+
+int		ft_abs(int n)
+{
+	if (n < 0)
+		n *= -1;
+	return (n);
+}
diff --git a/srcs/ft_greater.c b/srcs/ft_greater.c
new file mode 100644
index 0000000..1c1d526
--- /dev/null
+++ b/srcs/ft_greater.c
@@ -0,0 +1,8 @@
+#include "libft.h"
+
+int		ft_greater(int a, int b)
+{
+	if (a < b)
+		return (b);
+	return (a);
+}
diff --git a/srcs/ft_sign.c b/srcs/ft_sign.c
new file mode 100644
index 0000000..b665855
--- /dev/null
+++ b/srcs/ft_sign.c
@@ -0,0 +1,8 @@
+#include "libft.h"
+
+int		ft_sign(int i)
+{
+	if (i < 0)
+		return (-1);
+	return (1);
+}
diff --git a/srcs/ft_smaller.c b/srcs/ft_smaller.c
new file mode 100644
index 0000000..688f466
--- /dev/null
+++ b/srcs/ft_smaller.c
@@ -0,0 +1,8 @@
+#include "libft.h"
+
+int		ft_smaller(int a, int b)
+{
+	if (a > b)
+		return (b);
+	return (a);
+}