diff --git a/bash.md b/bash.md
index ab61a3a38..9aefd8c6a 100644
--- a/bash.md
+++ b/bash.md
@@ -678,6 +678,12 @@ source "${0%/*}/../share/foo.sh"
 ```bash
 printf "Hello %s, I'm %s" Sven Olga
 #=> "Hello Sven, I'm Olga
+
+printf "1 + 1 = %d" 2
+#=> "1 + 1 = 2"
+
+printf "This is how you print a float: %f" 2
+#=> "This is how you print a float: 2.000000"
 ```
 
 ### Directory of script