tolong bantuin ding,plisss

1. 80 : 10 + 6 - 2
= 80 : 10
= 8 + 6
= 14 - 2
= 12
Jawabannya C

2. 1.420 potong - 900 potong : 20 potong
= 520 potong : 20 potong
= 26 potong
Jawabannya A

3. -12 - 60 : 2 × 15
= (-12) - (60 : 2) × 15
= (-12) - (30 × 15)
= (-12) - 450
= (-462)
Jawabannya B