a) {[(16+4):4] - 2} b)60 : {[(12 - 3). 2] + 2}
2 câu trả lời
a)
{[(16+4):4]−2}
=(20:4)−2
=5−2
=3
b)
60:{[(12−3).2]+2}
=60[(9.2)+2]
=60(18+2)
=60.20
=1200
a)
{[(16+4):4]-2}
=(20:4)-2
=5-2
=3
b)
60:{[(12-3).2]+2}
=60[(9.2)+2]
=60(18+2)
=60.20
=1200