Answer :
[tex][90-(12+13)](15:3)= \\\\=(90-25)*5=\\\\= 65*5=\\\\=\boxed{325}[/tex]
First, solve the brackets. 13+12= 25. 15÷3= 5. So te equation is now: 90-25 × 5. Do 90-25 first, it equals 75. All that's left is 75×5, which is 375.
