Tolong dijawab yahhh

1.18x7= 126
2.8+5-4=9
3.12+84=96

1. (6+12) x 7 
  = 18 x 7
  = 126

2. 8+10:2-4
  = 8 + (10:2)-4
  = 8 +5 -4
  = 9

3. 4x3+7x12
  = (4x3) + (7x12)
  = 12 + 84
  = 100