diff --git a/09 - Coding/what-is-the-value-of-foo.md b/09 - Coding/what-is-the-value-of-foo.md
new file mode 100644
index 0000000..3bdbc3d
--- /dev/null
+++ b/09 - Coding/what-is-the-value-of-foo.md	
@@ -0,0 +1,2 @@
+`var foo = 10 + '20';`
+foo = 1020