36/( 10- 1) The correct number should be 10 times of the zero missing number, that is, 9 times of the zero missing number.

=36/9 The result is less than the answer 36.

=4, so the number missing zero is 4.

The result is that the sum is 36 less than the correct answer, so: 4+36=40, so the correct addend is 40! ! !

Yiyuyan 1999 answers for you, hope to adopt ~ ~! !