1 files changed, 19 insertions, 0 deletions
diff --git a/lib/arel/math.rb b/lib/arel/math.rb
new file mode 100644
index 0000000000..b7c2419233
--- /dev/null
+++ b/lib/arel/math.rb
@@ -0,0 +1,19 @@
+module Arel
+  module Math
+    def *(other)
+      Arel::Nodes::Multiplication.new(self, other)
+    end
+
+    def +(other)
+      Arel::Nodes::Addition.new(self, other)
+    end
+
+    def -(other)
+      Arel::Nodes::Subtraction.new(self, other)
+    end
+
+    def /(other)
+      Arel::Nodes::Division.new(self, other)
+    end
+  end
+end