This a group of 4 math centers. The 1st center is to match a given word problem with the correct number sentence, picture, and strategy used (addition or subtraction). The 2nd center is to solve and sort math problems based on if it is true or false. The 3rd center is a subtraction center using any available object as counting pieces. There is also a game center that can be used to review addition or subtraction based on what your students need. Hope your kids enjoy it as much as mine did!