600÷(120÷60)
(26+14)×70
600÷(10+120÷60)
(600÷10+120)÷60
26+14×(70-30)
(26+14)×(70-30)
=600÷2
=300
=600÷(10+2)
=600÷12
=50
=(60+120)÷60
=180÷60
=3
=40×70
=2800
=26+14×40
=26+560
=586
=40×40
=1600