Giải thích các bước giải:
`(86 × 72 – 6256 : 4 ) +123`
`=` `(6192 - 1564) + 123`
`=` `4628 +123`
`=` `4751`
`(89 × 69 – 7296 : 3 ) × 9`
`= (6141 - 2432) × 9`
`= 3709 × 9`
`= 33381`
`8672 – ( 937 × 5 +1647 : 9)`
`=` `8672 - (4685 + 183)`
`=` `8672 - 4868`
`=` `3804`
`(9150+ 1255 ×4) : 5`
`=` `(9150 + 5020) : 5`
`=` `14170 : 5`
`=` `2834`
`54367+ 2468 × 5 – 23456`
`=` `54367 + 12340 - 23456`
`=` `66707 - 23456`
`=` `43251`
`26781:3 + 13786`
`=` `8927 + 13786`
`=` `22713`