hi all, i've got a problems while trying to add, minus, times and divid 2 variables. they are both retreive from Oracle database and come up in the asp as a 'decimal subtype'. However, i always got a 'type mismatch' error. <BR>eg. value = price * quantity which variable 'price' and 'quantity' are drawn from database and i put it in a new variable called 'value' in asp. what's wrong? please help me as i could not solve it during the weekend. Thanks & thanks.