a)47-[(45x24-52x12):14]
=47-[(45x16-25x12):14]
=47-[(720-300):14]
=47-[420:14]
=47-30
=17
b)695-[200+(11-1)2]
=695-[200+102]
=695-[200+100]
=695-300
=395
tick hộ nha
a) 47 - [ ( 45 x 24 - 52 x 12 ) : 14 ]
= 47 - [ ( 720 - 300 ) : 14 ]
= 47 - [ 420 : 14 ]
= 47 - 30
= 17
b) 695 - [ 200+ ( 11 - 1)2 ]
= 695 - [ 200 + 102 ]
= 695 - [ 200 + 100 ]
= 695 - 300
= 395
Tick nha