This pdf includes one center for multiplication. I used this in correlation with the NYS Module 3, which is about multiplication and division. These word problems are applicable for the lessons where mutli-digit numbers are being multiplied by one-digit numbers. I will have another center posted for word problems involving two-digit by two-digit multiplication. These are aligned with the common core state standards 4.NBT.5, 4.OA.2, and 4.OA.3.
In this center, students need to read through a word problem and determine how to solve it, using multiplication. There are challenging ones, which are differentiated based on a lighting bolt so that students can easily find the difficult ones.
This center has 60 cards, which are numbered.
There is also an answer key provided at the end.