Respuesta :

On number 1, it is 5-2, not 2-5.
On number 2, 3(4+12).
On number 3, (15/3)+10
On number 4, 2+6*4
On number 5, it is correct
On number 6, 2(8-2)
On number 7, it is correct
On number 8, (8*1/4)+11
Hope this helps