diff --git a/stdlib/arith.go b/stdlib/arith.go
index d991085..a5b1274 100644
--- a/stdlib/arith.go
+++ b/stdlib/arith.go
@@ -69,6 +69,7 @@ func add(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
 
 func sub(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
     var res float64
+    var sub float64
 
     for i := in; i != nil; i = i.Next {
         if i.Tag != ast.NUMBER {
@@ -78,6 +79,7 @@ func sub(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
 
         token := i.Inner.(string)
         isFloat := false
+        var inner float64
         for _, char := range token {
             if char == '.' {
                 isFloat = true
@@ -87,7 +89,7 @@ func sub(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
                     return nil
                 }
 
-                res -= n
+                inner = n
             }
         }
 
@@ -98,15 +100,21 @@ func sub(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
                 return nil
             }
 
-            res -= float64(n)
+            inner = float64(n)
+        }
+
+        if i.Next != nil {
+            sub += inner
+        } else {
+            res = inner
         }
     }
 
-    return &ast.Token{Tag: ast.NUMBER, Inner: fmt.Sprintf("%f", res)}
+    return &ast.Token{Tag: ast.NUMBER, Inner: fmt.Sprintf("%f", res - sub)}
 }
 
 func mult(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
-    var res float64
+    res := 1.0
 
     for i := in; i != nil; i = i.Next {
         if i.Tag != ast.NUMBER {
@@ -147,6 +155,8 @@ func div(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
     var res float64
 
     for i := in; i != nil; i = i.Next {
+        inner := 0.0
+
         if i.Tag != ast.NUMBER {
             log.Log(log.ERR, "Non-number given to DIV", "div")
             return nil
@@ -163,7 +173,7 @@ func div(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
                     return nil
                 }
 
-                res /= n
+                inner = n
             }
         }
 
@@ -174,7 +184,13 @@ func div(in *ast.Token, a ast.VarTable, f ast.FuncTable) *ast.Token {
                 return nil
             }
 
-            res /= float64(n)
+            inner = float64(n)
+        }
+
+        if i == in {
+            res = inner
+        } else {
+            res = res / inner
         }
     }