Răspuns :
[276+117x9-(832:2-531:9)]x10=
[276 +117x9 -( 416-59)]x10=
(276+117x9-357)x10=
(276+1053-357)x10=
972x10=
9720
[276 +117x9 -( 416-59)]x10=
(276+117x9-357)x10=
(276+1053-357)x10=
972x10=
9720