Spider Maths - Single Sided Each input number in a flow diagram has a corresponding output number. The first (top) input number corresponds to the first output number. The second input number corresponds to the second output number, and so on. To Put it simply lets say you put x2 in the center the first leg has 2 on it so you will then do what the spider tells you in it's tummy so 2 x 2 and then you will put the answer on the other side of the spiders leg You can do countless exercises on this sheet use whiteboard marker erase and do another one.