To multiply multi-digit numbers, it’s important to line up the numbers A. vertically.
B horizontally
C. at an angle.
D. in numerical order.

Vertically

Step-by-step explanation:

Example:

1233

x 7888

A

Step-by-step explanation:

you do that because you need to carry the numbers and you get a much better answer.

step-by-step explanation:

descending order means to order the polynomials from the term with the largest exponent to the term with the smallest exponent.  

therefore, the correct answer is d.