A math contest was held in bright primary school. There are ten questions in the contest. Eight points were deducted for each wrong question, and Xiao Gang got 4 1 point. How many questions did Xiaogang answer correctly?

10-(8× 10-4 1)÷(8+5)

= 10-(80-4 1)÷ 13

= 10-39÷ 13

= 10-3

=7 questions