this is very easy problem bro.
here is the answer for your confusion.
the column of Soccer has 3 box. 1 for Male, 2 for female and 3 for total.
let the number of males for soccer be M number of females for soccer be F.
there total is 80
F + M = 80
50 + M = 80
M = 80 -50
M=30
now looking at the row of male. there are 30 male in soccer and 30 in baseball. so the total is
Total = Soccer + Baseball
Total = 30 + 30
Total = 60
now looking at the row of female. there are 50 female in soccer and total is 76.
let the number of females for Baseball be B and number of females for soccer is S
S+B=76
50 + B = 76
B = 76 - 50
B=26
now looking at the column of Baseball the total number of Male and female is
Total =30 + 26
Total = 56.
now looking at the column of total. there are 60 Male and 76 female. so the total is
total = Male + female
total = 60 + 76
total = 136