@SeeboldTeaches -
I think it is possible to do, but it will be somewhat hard to explain in words. It would be ideal if someone could sit down and explain/show it to you.
However, since that is not possible, here are some things to try:
1) in word, create the table with the formatting, shading of cells whatever you want.
2) click on the + sign on that table to select the table and use ctrl-c to copy it.
3) go over to the fill in the blank question quiz problem description and type ctrl-v to paste it
(note I did this and what I had in word copied over - different borders and colors of shading in cells
4) now edit the table in the question by putting in your knowns and the unknowns
The above worked for me as shown in the bottom table of the picture. the middle table was the first attempt of pasting in from word and the top one was created in Canvas itself. For the top table, I modified table properties and cell properties from the editor. One thing to note is what happens to the row height with the boxes cells that require an answer(I did not put any in the bottom table - just checking shading and formatting)
For the top table, I had advanced table properties of cell spacing 6, cell padding 6, border 5, then for the two cells I had advanced cell properties of border style - grooved, border color pink, background yellow, and then solid, red and blue for the other one.
You will just have to play around with it to do exactly what you want.
Ron