diff --git a/README.md b/README.md
index 51b8fbcf..d1461f84 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Build a Simple Calculator
+num# Build a Simple Calculator
 
 ## Learning Goals
 
diff --git a/lib/math.rb b/lib/math.rb
index 011b88ff..17eee880 100644
--- a/lib/math.rb
+++ b/lib/math.rb
@@ -1,23 +1,23 @@
 def addition(num1, num2)
-
+  num1 + num2
 end
 
 def subtraction(num1, num2)
-
+num1 - num2
 end
 
 def division(num1, num2)
-
+num1 / num2
 end
 
 def multiplication(num1, num2)
-
+num1 * num2
 end
 
 def modulo(num1, num2)
-
+num1 % num2
 end
 
 def square_root(num)
-
+return === sqrt(num)
 end
\ No newline at end of file