0,46*18*10<x*60<1,42*10*6
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)
vay x =............................................. vi .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 17,6 - 5,3 + 16,8 - 7,6 + 15,3 - 6,8
= ( 17,6 - 7,6 ) + ( 16,8 - 6,8 ) + ( 15,3 - 5,3 )
= 10 + 10 + 10
= 30
b) 3,54 . 73 + 0,46 . 25 + 3,54 . 26 + 0,46 . 75 + 3,54
= 3,54 ( 73 + 26 + 1 ) + 0,46 ( 25 + 75 )
= 3,54 . 100 + 0,46 . 100
= 100 ( 3,54 + 0,46 )
= 100 . 4
= 400
a, 17,6 - 5,3 + 16,8 - 7,6 + 15,3 - 6,8
= ( 17,6 - 7,6 ) + ( 16,8 - 6,8 ) + ( 15,3 - 5,3 )
= 10 + 10 + 10
= 30
![](https://rs.olm.vn/images/avt/0.png?1311)
a)2006x125+1000=250,75x125x8+1000=250,75x1000+1000=1000(250,75+1)=1000x251,75=251750
731-47+69-253=(731+69)-(47+253)=800-300=500
b)3,54x73+0,46x25+3,54x26+0,46x75+3,54
=3,54(73+26+1)+0,46(25+75)
=3,54x100+0,46x100
=354+46=400