<Li> The first digit of the cube root is 7 . </Li> <Li> The cube root of 456533 is 77 . </Li> <P> This process can be extended to find cube roots that are 3 digits long, by using arithmetic modulo 11 . </P> <P> These types of tricks can be used in any root where the order of the root is coprime with 10; thus it fails to work in square root, since the power, 2, divides into 10 . 3 does not divide 10, thus cube roots work . </P>

What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1000