I want to create a cube stack 10x10x10 to show the place value of numbers

[SnehaBeeG]

I want to create a cube stack for my maths project, as shown in the image. I want to create in adobe illustrator. Please help me with the steps to follow.

[Monika Gause]

THat's an isometric drawing. 

You can create the flat version of it, using the rectangular grid tool

and then use the guidance in here: https://design.tutsplus.com/tutorials/how-to-create-advanced-isometric-illustrations-using-the-ssr-m... 

[Jacob Bugge]

SnehaBeeG,

Depending on the desired appearance in the range from technical/simplified to realistic, you can choose between different graphical projections,

https://en.wikipedia.org/wiki/3D_projection

As compared to the chart, your cube is far from Isometric (which is very technical) and closer to Cabinet (which is less technical but still simplified), but it is actually a rather intriguing 1-point Perspective, albeit showing the inside of half a cube seen from below, the bottom/front/right faces removed. Taken at face value, as a solid object seen from outside, the unseen rear face would form a larger square than the front face (it is larger in your two dimensional image), so actually no cube.

This made me wonder whether you might like a 1-Point Perspective, which can be made with the Perspective Grid, and it will be a bit opposite to your drawing (smaller in the two dimensional representaion).