Create table in mysql with one column containing sum of another two columns value

Is it possible in mysql to create a table with a column that combines two column values? something like this:

create table test1 (
    number1 int,
    number2 int,
    total int DEFAULT (number1+number2)
);

or like this :

CREATE TABLE `Result` (
    `aCount` INT DEFAULT 0,
    `bCount` INT DEFAULT 0,
    `cCount` =  `aCount` + `bCount`
);