diff --git a/test.md b/test.md
index 8f68efb..4d14b83 100644
--- a/test.md
+++ b/test.md
@@ -35,6 +35,8 @@ A non-breakable space bro
 
 A lot              of spaces
 
+A text with some $math$.
+
 This should be seen by all.
 
 [!opendatatask]{}
diff --git a/whitespace.py b/whitespace.py
index bf27d26..5b1ecc1 100644
--- a/whitespace.py
+++ b/whitespace.py
@@ -1,4 +1,4 @@
-from panflute import Space,SoftBreak,Str
+from panflute import Space, SoftBreak, Str, Math
 from typing import Union
 
 # Import local files
@@ -12,11 +12,26 @@ class NBSP(Space):
 def bavlna(e: Whitespace, c: Context) -> bool:
 	"""Determine if given piece of whitespace should be non-breakable."""
 	
+	
 	if c.get_metadata("language") == "cs":
-
-		# TODO: Add more clever stuff
-		if isinstance(e.prev, Str) and isinstance(e.next, Str) and e.prev.text.lower() in ['k', 's', 'v', 'z', 'o', 'u', 'a', 'i']:
+		if isinstance(e.prev, Str) and isinstance(e.next, Str):
+			if e.prev.text.lower() in ['k', 's', 'v', 'z', 'o', 'u', 'a', 'i']:
+				return True
+			
+	if isinstance(e.prev, Str) and isinstance(e.next, Str):
+		prevC = e.prev.text[-1]
+		nextC = e.next.text[0]
+		numbers = ["0123456789"]
+		operators = ["+-/*^%:"]
+		if prevC in numbers and nextC in numbers:
+			return True
+		if prevC in numbers and nextC in operators:
 			return True
+		if prevC in operators and nextC in numbers:
+			return True
+
+	if isinstance(e.prev, Math) or isinstance(e.next, Math):
+		return True