How to make an dice in blander part 2

How to make an dice in blander:

                                     part 2

4^th step:

            Now perform the Boolean operation on each sphere

for this select the cube and go to properties panel and chose add modifier and chose the operation difference and select an sphere , spher.001 ,sphere.002 etc

we have 21 sphere as name sphere , sphere.001 etc as  show in fig below

after performing the Boolean operation on each sphere 

5^th step:

           now go to scenes window which is in right side and above the properties panel and invisible and unreadable all sphere object as show below fig

after make all sphere invisible your sphere look like this

6^th step:

now press tab and go to edit mode then your cube look like this

now go to properties panel and go to add material then press the + button and press new button as show fig below

after pressing new button and click the diffuse and chose the color and press the assign button now press the tab to go the outside from the edit mode as show in fig below

now your dice is ready look like below fig

                                              download blender file