Four corners--fast check for understanding or use as opening the following day. You could also use it as an assessment...giving students equations to sort independently or in groups.
As a close, you'd post the first four pages one in each corner...you'd change the font color on the fifth sheet before printing, cut the strips...keep number or letter attached to equation to the right, give students an equation each and tell them to go to the corner that they'd think they needed to multiply by to clear the decimals.
First four pages are designed for you to flip the bottom up and tape, so kids can't see answers. Once they've gone to their respective corners, ask them to flip up the bottom. If they're correct, their letter or number will be there. :) If not, ask students in that corner to explain to the student where he or she messed up.