diff --git a/algoritmos/ordenacao/decreasing/insertion.py b/algoritmos/ordenacao/decreasing/insertion.py
new file mode 100644
index 0000000..adf79be
--- /dev/null
+++ b/algoritmos/ordenacao/decreasing/insertion.py
@@ -0,0 +1,21 @@
+lista = [0,1,5,3,15,16,9,10,4,3,30,5,20,48,71,82]
+
+def swap(i , j):
+    tmp      = lista[i]
+    lista[i] = lista[j]
+    lista[j] = tmp
+
+def insertion():
+
+    for i in range(0, len(lista)-1):
+
+        j = (i+1)
+
+        while j > 0 and lista[j-1] < lista[j]:
+            swap(j-1, j)
+            j -= 1
+
+if __name__ == '__main__':
+    
+    insertion()
+    print(lista)
\ No newline at end of file
diff --git a/algoritmos/ordenacao/decreasing/selection.py b/algoritmos/ordenacao/decreasing/selection.py
new file mode 100644
index 0000000..5759300
--- /dev/null
+++ b/algoritmos/ordenacao/decreasing/selection.py
@@ -0,0 +1,24 @@
+lista = [0,1,5,3,15,16,9,10,4,3,30,5,20,48,71,82]
+
+def swap(i , j):
+    tmp      = lista[j]
+    lista[j] = lista[i]
+    lista[i] = tmp
+
+def selection():
+
+    for i in range(0, len(lista)):
+
+        pos = i
+
+        for j in range((i+1), len(lista)):
+
+            if lista[j] > lista[pos]:
+                pos = j
+        
+        swap(pos, i)
+
+
+if __name__ == '__main__':
+    selection()
+    print(lista)
\ No newline at end of file