diff --git a/math/fp.hpp b/math/fp.hpp
index 8f9c9ab..7b5b6eb 100644
--- a/math/fp.hpp
+++ b/math/fp.hpp
@@ -89,6 +89,18 @@ constexpr inline fp<T, I, B> operator+(const fp<T, I, B>& a, const fp<T, I, B>&
   return fp<T, I, B>(a.value + b.value, fp_raw_tag{});
 }
 
+template <typename T, typename I, int B>
+constexpr inline fp<T, I, B> operator>>(const fp<T, I, B>& a, int s)
+{
+  return fp<T, I, B>(a.value >> s, fp_raw_tag{});
+}
+
+template <typename T, typename I, int B>
+constexpr inline fp<T, I, B> operator<<(const fp<T, I, B>& a, int s)
+{
+  return fp<T, I, B>(a.value << s, fp_raw_tag{});
+}
+
 template <typename T, typename I, int B>
 constexpr inline fp<T, I, B> operator-(const fp<T, I, B>& a, const fp<T, I, B>& b)
 {