![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
210 c m 2 = 2 d m 2 10 c m 2
1954 c m 2 > 19 d m 2 50 c m 2
6 d m 2 3 c m 2 = 603 c m 2
2001 c m 2 < 20 d m 2 10 c m 2
![](https://rs.olm.vn/images/avt/0.png?1311)
a)483*8+483+483
=483*8+483*1+483*1
=483*(8+1+1)
=483*10
=4830
b)620*43+620*56+620
=620*43+620*56+620*1
=620*(43+56+1)
=620*100
=62000
![](https://rs.olm.vn/images/avt/0.png?1311)
\(11\) \(\div\) \(92\) \(=\) \(\frac{11}{92}\)
\(76\) \(\div\) \(980\) \(=\) \(\frac{76}{980}\) \(=\) \(\frac{19}{245}\)
\(9\) \(\div\) \(7558\) \(=\) \(\frac{9}{7558}\)
\(85\) \(\div\) \(980\) \(=\) \(\frac{85}{980}\) \(=\) \(\frac{17}{196}\)
\(86\) \(\div\) \(879\) \(=\) \(\frac{86}{879}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
210+980+603+620+260
=(210+620)+(603+107)+(980+260)
=830+710+1240
=1540+1240
=2780
210+980+603+107+620+260=2780
Chúc bạn học tốt ,
Luffy Mũ Rơm