Need fast draw the base plan for the set of stacked cubes, assume the no cubes are hidden from view.

Given Figure has set of Stacked cubes.

To Draw the Base Plan, lets see its right side, Left Side and Front side view.

Right side:

It has 3 cubes in base. 2 cubes in 2nd layer clearly seen in figure and only 1 cube in 3rd layer.

Left Side:

It has 2 Cubes in base.Both Cubes attached to 1st and 2nd cube of right side cubes.

Front Side:

It clearly shows base only has 2 rows of cubes.

Therefore, 1st Figure is correct Base Plan (or enclosed figure)

Note: Numbers in enclosed figure just shows the total no. of cubes in that stack.

The commutative property basically allows you to move numbers/variables/etc around and still get the same answer. You can only do this with addition and multiplication. Eg. a+b = b+a OR a x b = b x a

Distributive law, in mathematics, the law relating the operations of multiplication and addition, stated symbolically, a(b + c) = ab + ac; that is, the monomial factor a is distributed, or separately applied, to each term of the binomial factor b + c, resulting in the product ab + ac. (https://www.britannica.com/topic/distributive-law)

Associative law, in mathematics, either of two laws relating to number operations of addition and multiplication, stated symbolically: a + (b + c) = (a + b) + c, and a(bc) = (ab)c; that is, the terms or factors may be associated in any way desired. (https://www.britannica.com/topic/associative-law)

Here's a video that explains the basics: https://www.youtube.com/watch?v=x9hoPIMNPw4