Dc is being told to the 2 times table is about doubling. For example 9x2 is double 9. Now of course the answer is correct and it is an easy way to get the answer.
However they had no idea of the concept that 9x2 is 9 sets of 2 objects.
They are starting by adding for example a set of 4 and a set of 4 so 4+4 is 2x4 so two fours are 8.