diff --git a/9_Num_Sort/9_Num_Sort.c b/9_Num_Sort/9_Num_Sort.c
new file mode 100644
index 0000000..02bbeab
--- /dev/null
+++ b/9_Num_Sort/9_Num_Sort.c
@@ -0,0 +1,30 @@
+// Bubblesort
+
+#include "9_Num_Sort.h"
+
+int main() {
+    // vars
+    int nums[MAXARR] = {12,15,17,6,2,4,7,6,3,10};
+
+    // sort
+    for (int max = sizeof(nums)/4 - 1; max >= 0; max--) {
+        //vars
+        int temp = 0;
+
+        // main loop
+        for (int i = 0; i < sizeof(nums)/4 - 1; i++) {  // sizeof -> bytes, so divided by type size; -1 to avoid overflow
+            if (nums[i] > nums[i + 1]) {
+                temp = nums[i];                         // switching the numbers
+                nums[i] = nums[i + 1];
+                nums[i + 1] = temp;
+            }
+        }
+    }
+
+    // output
+    for (int i = 0; i < sizeof(nums)/4; i++) {          // sizeof -> bytes, so divided by type size; -1 to avoid overflow
+        printf("%i\n", nums[i]);
+    }
+
+    return 0;
+}
diff --git a/9_Num_Sort/9_Num_Sort.h b/9_Num_Sort/9_Num_Sort.h
new file mode 100644
index 0000000..7acb2f5
--- /dev/null
+++ b/9_Num_Sort/9_Num_Sort.h
@@ -0,0 +1,3 @@
+#include <stdio.h>
+
+#define MAXARR 10