Answer in the picture: 87, 88, fill in 97, 98 below; 34, 35. Write 24, 25 on it.

Answer on the right: b, d (in no particular order, you can also fill in d and b, in addition to color classification, you can also classify by size. The following is the result of color classification, so the above should be classified according to size, with item B all small and item D all large)