(1+2+3-4)*5=10
(1) (1 +2) *3 -4+ 5=10 (2)( 1* 2 *3 -4) *5=10 (3)( 1 +2 )/3 +4 +5=10
(1+2+3-4)x5=10(1+2)%3+4+5=10
(1+2+3-4)*5