If a small cube with side length of 1 is dug out from a vertex of a cube with side length of 10, the surface area of the remaining figure is______ .

If a small cube with side length of 1 is dug out from a vertex of a cube with side length of 10, the surface area of the remaining figure is______ .

It can be seen from the figure that after the small cube is removed, the surface area of the remaining figure is equal to the surface product of the original cube. Therefore, the surface area of the remaining figure = 10 × 10 × 6 = 600