48——32; 56——30; ..... In this way, as long as we look carefully below, we can see that the single digit of the previous number multiplied by the ten digits is the last number. For example: 4× 8 = 32; 5×6=30; ..... So the next space is: 36-(18); 67——(42); 89——(72); 58——(40)。 The answer is:18,42,72,40.

Whether it can be adopted or not, I will be happy to answer your question!