diff --git a/src/com/webcodepro/applecommander/compiler/Variable.java b/src/com/webcodepro/applecommander/compiler/Variable.java
index 087f6e6..9a8a3a5 100644
--- a/src/com/webcodepro/applecommander/compiler/Variable.java
+++ b/src/com/webcodepro/applecommander/compiler/Variable.java
@@ -86,6 +86,14 @@ public class Variable {
 		return isTypeFloat() || isTypeInteger() || isTypeString();
 	}
 	
+	/**
+	 * Answers true if this is a number.
+	 */
+	public boolean isNumber() {
+		return isConstantFloat() || isConstantInteger()
+			|| isTypeFloat() || isTypeInteger();
+	}
+	
 	/**
 	 * Answers true if this is a string constant.
 	 */