6×5=30. the sum of the five numbers is 30. then just do 30-7-8-5-2=8. 8 is the number on the bottom card.
Answer:
9 - (2/x)
Step-by-step explanation:
Nine minus
9 -
the quotient of two and a number x
2/x
The expression is
9 - (2/x)
I believe the answer to your question is 657
