1+2+3+4+5+6+9+123 bằng mấy?
ai giải được kết bạn mình nhé!
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DP
32
17 tháng 3 2016
1-1/2+1/2-1/3+1/3-1/4+1/4-1/5
=(1-1/5)+(1/2-1/2)+(1/3-1/3)+(1/4-1/4)
=(5/5-1/5)+0+0+0=4/5
DS
6 tháng 7 2016
a)49.7.73
=72.71.73
=76
b)98:32
98=(32)8
=316:32
=314
Chúc em học tốt^^
22 tháng 5 2018
My best friend name's Như.
She has long black hair and big eyes.
She is light.She play badminton with me.
She swimming.And she eat noodles
and drink orange juice.
I love my best friend
22 tháng 5 2018
My best friend in high school is Lan. Lan sits next to me in class, eats with me at break time, and hangs out with me after school. She has long and beautiful hair; my mother always says that I need to pay more attention to my hair so it can be pretty as hers. I am good at English while Lan is excellent in Math, therefore we can help each other every time one of us has trouble in understanding those subjects. Besides our study, Lan is always by my side whenever I feel upset. I tell her everything, and only her can know my true feelings. We have been best friends since our young age, and I will keep this friendship forever.
Kết Quả là 153
153
k nhen