diff --git a/src/CalcViewModel/StandardCalculatorViewModel.cpp b/src/CalcViewModel/StandardCalculatorViewModel.cpp
index d6b399b..c01c478 100644
--- a/src/CalcViewModel/StandardCalculatorViewModel.cpp
+++ b/src/CalcViewModel/StandardCalculatorViewModel.cpp
@@ -578,8 +578,7 @@ void StandardCalculatorViewModel::HandleUpdatedOperandData(Command cmdenum)
 
 bool StandardCalculatorViewModel::IsOperator(Command cmdenum)
 {
-    if ((cmdenum == Command::Command0) || (cmdenum == Command::Command1) || (cmdenum == Command::Command2) || (cmdenum == Command::Command3) || (cmdenum == Command::Command4) || (cmdenum == Command::Command5)
-        || (cmdenum == Command::Command6) || (cmdenum == Command::Command7) || (cmdenum == Command::Command8) || (cmdenum == Command::Command9) || (cmdenum == Command::CommandPNT) || (cmdenum == Command::CommandBACK)
+    if ((cmdenum >= Command::Command0 && cmdenum <= Command::Command9) || (cmdenum == Command::CommandPNT) || (cmdenum == Command::CommandBACK)
         || (cmdenum == Command::CommandEXP) || (cmdenum == Command::CommandFE) || (cmdenum == Command::ModeBasic) || (cmdenum == Command::ModeProgrammer) || (cmdenum == Command::ModeScientific)
         || (cmdenum == Command::CommandINV) || (cmdenum == Command::CommandCENTR) || (cmdenum == Command::CommandDEG) || (cmdenum == Command::CommandRAD) || (cmdenum == Command::CommandGRAD)
         || ((cmdenum >= Command::CommandBINEDITSTART) && (cmdenum <= Command::CommandBINEDITEND)))
@@ -652,8 +651,7 @@ void StandardCalculatorViewModel::OnButtonPressed(Object^ parameter)
             {
                 m_CurrentAngleType = numOpEnum;
             }
-            if ((cmdenum == Command::Command0) || (cmdenum == Command::Command1) || (cmdenum == Command::Command2) || (cmdenum == Command::Command3) || (cmdenum == Command::Command4) || (cmdenum == Command::Command5)
-                || (cmdenum == Command::Command6) || (cmdenum == Command::Command7) || (cmdenum == Command::Command8) || (cmdenum == Command::Command9) || (cmdenum == Command::CommandPNT) || (cmdenum == Command::CommandBACK) || (cmdenum == Command::CommandEXP))
+            if ((cmdenum >= Command::Command0 && cmdenum <= Command::Command9) || (cmdenum == Command::CommandPNT) || (cmdenum == Command::CommandBACK) || (cmdenum == Command::CommandEXP))
             {
                 IsOperatorCommand = false;
             }