Question

900-(600-100):5=?, (900-600)-100:5=?, 150+50*4+6=?, 880-720:8*9=?.

Answer 1

900-(600-100):5=900-500:5=900-100=800
 (900-600)-100:5=300-20=280
150+50*4+6=150+200+6=356
880-720:8*9=880-90*9=880-810=70

Answer 2

спс