Hi @comma
Use 'Set variable' %SumVar% as %var1+var2+var3+var4+var5%
Then use %SumVar% in your 'If' action.
Depending on how you inform/catch the variables, it can be stored as text instead of number, thus not giving you the sum. If that's the case, use 'Convert text to number' to assure each var is a number before sum.