Add is_even and is_odd snippets

snippets/is_even.md

@@ -0,0 +1,18 @@
+---
+title: is_even
+tags: math,beginner
+---
+
+Returns `True` if the given number is even, `False` otherwise.
+
+Checks whether a number is odd or even using the modulo (`%`) operator. 
+Returns `True` if the number is even, `False` if the number is odd.
+
+```py
+def is_even(num):
+  return num % 2 == 0
+```
+
+```py
+is_even(3) # False
+```

snippets/is_odd.md

@@ -0,0 +1,18 @@
+---
+title: is_odd
+tags: math,beginner
+---
+
+Returns `True` if the given number is odd, `False` otherwise.
+
+Checks whether a number is even or odd using the modulo (`%`) operator. 
+Returns `True` if the number is odd, `False` if the number is even.
+
+```py
+def is_odd(num):
+  return num % 2 == `0`
+```
+
+```py
+is_odd(3) # True
+```