10 , 1000 , 100000 , 10000000 . . . .
"each number in this sequence is multiplied by 100 . with multiples of ten , it is easiest to remember that you can just transfer all the zeroes on the end of the end of any number . example : 10 x 100 = 1,000 . add two digits to the end of 10 , 000,000 and you get 1,000 , 000,000 . answer is b"
subtract(negate(10000000), multiply(subtract(1000, 100000), divide(subtract(1000, 100000), subtract(10, 1000))))