diff --git a/1_hello_world.c b/01_hello_world.c
similarity index 97%
rename from 1_hello_world.c
rename to 01_hello_world.c
index 9a0a569..fb3127d 100644
--- a/1_hello_world.c
+++ b/01_hello_world.c
@@ -3,4 +3,4 @@
 void main () {
 	printf("Hello World!");
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/2_variables.c b/02_variables.c
similarity index 99%
rename from 2_variables.c
rename to 02_variables.c
index b7ddccd..83d4b5a 100644
--- a/2_variables.c
+++ b/02_variables.c
@@ -11,4 +11,4 @@ int main() {
   printf("%f\n", myFloatNum);
   printf("%c\n", myLetter);
   return 0;
-}
\ No newline at end of file
+}
diff --git a/3_data_types.c b/03_data_types.c
similarity index 98%
rename from 3_data_types.c
rename to 03_data_types.c
index 840396d..980d14f 100644
--- a/3_data_types.c
+++ b/03_data_types.c
@@ -10,4 +10,4 @@ int main (){
 	printf("%c\n" , model);
 	
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/4_constant_variables.c b/04_constant_variables.c
similarity index 98%
rename from 4_constant_variables.c
rename to 04_constant_variables.c
index a0504c7..375be40 100644
--- a/4_constant_variables.c
+++ b/04_constant_variables.c
@@ -9,4 +9,4 @@ int main() {
 	printf("%c\n", characters);
 	
 	return 0;
-}
\ No newline at end of file
+}
diff --git a/5_operators.c b/05_operators.c
similarity index 99%
rename from 5_operators.c
rename to 05_operators.c
index 051ea25..d5fbe3a 100644
--- a/5_operators.c
+++ b/05_operators.c
@@ -8,4 +8,4 @@ int main() {
   printf("%d\n", sum2);
   printf("%d\n", sum3);
   return 0;
-}
\ No newline at end of file
+}
diff --git a/6_booleans.c b/06_booleans.c
similarity index 100%
rename from 6_booleans.c
rename to 06_booleans.c
diff --git a/7_if_else_loops.c b/07_if_else_loops.c
similarity index 100%
rename from 7_if_else_loops.c
rename to 07_if_else_loops.c
diff --git a/8_while_loops.c b/08_while_loops.c
similarity index 100%
rename from 8_while_loops.c
rename to 08_while_loops.c
diff --git a/9_for_loops.c b/09_for_loops.c
similarity index 100%
rename from 9_for_loops.c
rename to 09_for_loops.c