the unit digit in the product ( 124 * 812 * 816 * 467 ) is :
"explanation : unit digit in the given product = unit digit in ( 4 * 2 * 6 * 7 ) = 6 answer : c"
subtract(multiply(multiply(multiply(124, 812), 816), 467), subtract(multiply(multiply(multiply(124, 812), 816), 467), add(const_4, const_4)))