diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6c9b99f..500d2fa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,9 @@
 
 ## v0.6.0 (dev)
 
+* Leading plus signs `+` are now stripped for siunitx notation within
+  Markdown.
+
 * Added `amsmath`, `amssymb`, and `siunitx` to template for LaTeX solutions
   export.
 
diff --git a/text2qti/markdown.py b/text2qti/markdown.py
index fa2e7d2..17102a1 100644
--- a/text2qti/markdown.py
+++ b/text2qti/markdown.py
@@ -314,6 +314,7 @@ def siunitx_num_to_plain_latex(self, number: str, in_math: bool=False) -> str:
         number = number.lower()
         if 'e' in number:
             significand, magnitude = number.split('e', 1)
+            magnitude = magnitude.lstrip('+')
             latex_number = f'{significand}\\times 10^{{{magnitude}}}'
         else:
             latex_number = number
diff --git a/text2qti/version.py b/text2qti/version.py
index 07189e3..bdacf6d 100644
--- a/text2qti/version.py
+++ b/text2qti/version.py
@@ -1,4 +1,4 @@
 # -*- coding: utf-8 -*-
 
 from .fmtversion import get_version_plus_info
-__version__, __version_info__ = get_version_plus_info(0, 6, 0, 'dev', 7)
+__version__, __version_info__ = get_version_plus_info(0, 6, 0, 'dev', 8)