For example, when we say left shift 5 or 101 by one position. We will shift each of the bits by one position towards the left. So after shifting the number 5 towards the left by one position, the number obtained is 10 or 1010. Now let us again left shift 10 by two positions. Again, we will shift each of the bits by two positions towards the left. The number obtained is 40 or 101000.