Question

ВЫЧИСЛИ.
(2+6)-4=2+(6-4)=
(4+7)-5=?+(?-?)=
(5+8)-7=?+(?-?)=
(1+7)-3=?+(?-?)=
(4+5)-2=?+(?-?)=
(1+9)-8=?+(?-?)=

Answer 1

(2+6)-4=2+(6-4)=4
(4+7)-5=4+(7-5)=6
(5+8)-7=5+(8-7)=6
(1+7)-3=1+(7-3)=5
(4+5)-2=4+(5-2)=7
(1+9)-8=1+(9-8)=2