How do you know that 4x2x2 is the same as 4x4

If you would like to know if 4x2x2 is the same as 4x4, you can find out using the following step:

2x2 equals to 4, so instead of 2x2 you can write 4.

The result is: 4x2x2 = 4x (2x2) = 4x4, which is the same as 4x4 in the second part of the question.

Because 2*2=4

so 4*4=16

and 4*2*2=16