tolong buatkan 1-10 yg uji keterampilan 2

1. 25 x 30 + (-485)
=750 - 485 = 265

2.2588-(45x15)
= 2588-675 = 1913

3.(-20) x476+ 834
= -9520 + 834 = -8686

4. 1263 + 2868 :(-3)
=1263 - 956=307

5.2684:4x8
= 2684:32=83.875