Question

12345678组成四道算式

( )+( )=( ) + - ( ) ( ) = = ( )-( )=( )把1 2 3 4 5 6 7 8 填在括号里,使它们正好组成四道算试
( )+( )=( )
+ -
( ) ( )
= =
( )-( )=( )把1 2 3 4 5 6 7 8 填在括号里,使它们正好组成四道算试

Answer 1

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