diff --git a/Engine.Core/Math.cs b/Engine.Core/Math.cs
index cfa52d2..2e20485 100644
--- a/Engine.Core/Math.cs
+++ b/Engine.Core/Math.cs
@@ -30,6 +30,13 @@ public static class Math
     /// </summary>
     public const float DegreeToRadian = PI / 180f;
 
+    /// <summary>
+    /// Gets one minus of given <see cref="T"/>.
+    /// </summary>
+    /// <param name="value">The value <see cref="T"/>.</param>
+    /// <returns>One minus of given <see cref="T"/>.</returns>
+    public static T OneMinus<T>(T value) where T : INumber<T> => T.One - value;
+
     /// <summary>
     /// Adds two <see cref="T"/>s.
     /// </summary>
diff --git a/Engine.Core/MathExtensions.cs b/Engine.Core/MathExtensions.cs
index 55bcdcc..7b6725d 100644
--- a/Engine.Core/MathExtensions.cs
+++ b/Engine.Core/MathExtensions.cs
@@ -5,6 +5,9 @@ namespace Syntriax.Engine.Core;
 
 public static class MathExtensions
 {
+    /// <inheritdoc cref="Math.OneMinus{T}(T)" />
+    public static T OneMinus<T>(this T value) where T : INumber<T> => Math.OneMinus(value);
+
     /// <inheritdoc cref="Math.Add{T}(T, T)" />
     public static T Add<T>(this T left, T value) where T : INumber<T> => Math.Add(left, value);