Multiplication Grid (see photos)
The multiplication grid uses the Base 10 blocks to build a multiplication question with the answer. 

10X1 
When building a multiplication grid the top number or first number goes across the top and the bottom or second number goes up the side.
There are four "sections" to a multiplication grid. Each section is named and made up of the shape used in it:
10X10 Section is
made up of the 10X10 shape which equals 100 units and is in the top left.
1X10 Section is made up of the 1X10 shape and is in the top right of the grid.
10X1 Section is made up of the 10X1 shape and is in the bottom left of the grid.
1X1 Section is made up of the 1X1 shape and in in the bottom right of the grid.
Not all sections may be used. Only those needed to represent the model.
Example:.
23
(top) X 34 (side) 
23 X 34 = (top X side) 
The top or first number corresponds to the XAxis and the bottom or second number corresponds to the YAxis on a coordinate plane. 
10 X 10 Section (20 X 30 = 600)
30
10 X 1 Section

20
3 
1 X 10 Section (3 X 30 = 90)
(3 X 4 = 12) 
23 X 34

20 X 30 +
3 X 30 + 20 X 4 + 3 X 4
600 + 90 + 80 + 12 782 
Note that the Grid reads across the page like a sentence. First the 10 X 10 Section and the 1 X 10 Section, and then it drops to the next line to continue with the 10 X1 Section and the 1 X 1 Section.