Answer

In a Local school one day, the Mathematics teacher got in and told the class that they will be dealing Addition and Subtraction. After teaching he asked a student John Bull how much will be remaining if he had 100 Dollars and the teacher himself removed 20 Dollars but the student was smiling and the next thing he was doing was to nodd his head and opened up and told the teacher that HE CAN NEVER TRY THAT THAT IF HE TRYS IT HE WILL MAKE SURE HE BEATS HIM UP!