diff --git a/data/scenario-test.cfg b/data/scenario-test.cfg
index 011e5431014..c01c9104245 100644
--- a/data/scenario-test.cfg
+++ b/data/scenario-test.cfg
@@ -887,6 +887,9 @@ For game purposes, the races group into factions; for example, orcs often cooper
             {VARIABLE_OP unset3 fpart unset4}
             {VARIABLE_OP unset5 value 3}
             {VARIABLE_OP unset6 string_length unset7}
+            {VARIABLE new_var "$($unset_var1+$unset_var2)"}
+            {VARIABLE new_var "$($unset_var1/$unset_var2)"}
+            {VARIABLE new_var "$($unset_var1*$unset_var2)"}
         [/event]
     [/event]