ada yg tau ini?? tolong dong bantuin jwb! bsk udah dikmpl.

1. 8.245 - 23.280 : 12
=8.245 - 1.940
=6.305

2. -23-15+-72
= -23+(-15)-72
=-38+(-72)
=-110

3.156-48
=108
(4)35-24+16
=27
(5) 8 x 3= 24
(6)16 x 3 x 5= 240
(7)324+225-64=  485
(8)=8
(9)15/16
10.10,08,