Question

which
number
replaces the mark
?
9
8
4
2
2
6
?
​

Answer 1

Step-by-step explanation:

Add the top two rows of numbers to obtain the bottom row;

4 2 9 8 6

+ 3 8 7 9 5

--------------------

= 8 1 7 8 1

Thus the number that replaces the question mark is 8