If a and b are two natural numbers such that a3 = b, then b is called the cube of a. <br />If the units digit of a3 is b, then the cubes of all numbers ending with a will have their units digit as b. <br /><br />The cubes of all numbers that end in 2 have 8 as the units digit. The cubes of all numbers that end in 3 have 7as the units digit. <br />Read More at https://learnnext.com/lesson/CBSE-VIII-Maths-Cubes-and-Cube-roots.htm