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2024-12-10 19:16:25
a, 3=3
5=5
7=7
BCNN(3;5;7)=3.5.7=105
Vậy x =105
b, 24=23.3
36=22.32
60=22.3.5
UCLN(24;36;60)=22.3=12
vậy có thể chia được nhiều nhất thành 12 món quà và có 2 gói bánh ; có 3 hộp sữa ; 5 khăn len
2024-12-10 18:39:46
.....
2024-12-10 18:39:08
a, 53.25-25.12+75.53
=53.(25+53)-25.12
=53.100-300
=5300-300
=5000
b, 260:[5+7.(72:23-6)]-32
= 260:[5+7.(72:8-6)]-32
=260:[5+7.(9-6)]-32
=260:[5+7.3]-32
=260:[5+21]-32
=260:26-32
=260:26-9
=10-9
=1
2024-12-09 19:46:12
-20213<-20123