68×(x:35)=1156
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\(68\times(x:35)=1156\)
`x:35=1156:68`
`x:35=17`
\(x=17\times35\)
`x=595`
68 x ( x : 35 ) = 1156
X : 35 = 1156 : 68
X : 35 = 17
X = 17 x 35
X = 595
![](https://rs.olm.vn/images/avt/0.png?1311)
a)68x(y:35)=1156
⇔ y:35=1156:68
⇔ y:35= 17
⇔ y = 17 x 35
⇔ y = 595
b) 111315:(Y x 123)=181(k chia hết)
⇔ y x 123=
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a)873 x (50-1) = 873 x 50 - 873 x1 = 43650- 873= 42 777
b) 225 x (100-1)= 22500 - 225= 21 275
c) 572 x (60+ 5) = 572 x 60 + 572 x 5= 34 320 + 2860 = 37 180
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\(4689+34545:35x68=4689+987x68\)
\(=4689+67116\)
\(=71805\)
\(\)các bạn cho mk vài ****
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 9 995; 9 996; 9 997; 9 998 ; 9 999 ; 10 000; 10 001; 10 002; 10 003
b) 35 760; 35 770; 35 780; 35 790; 35 800; 35 810; 35 820; 35 830
c) 68 400; 68 500; 68 600; 68 700; 68 800; 68 900; 69 000; 69 100
![](https://rs.olm.vn/images/avt/0.png?1311)
3 ( x + 2 ) = 68 - 35
3 ( x + 2 ) = 33
x + 2 = 33 : 3
x + 2 = 11
x = 11 - 2
z = 9
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\(A=\frac{18\times123+9\times567\times2+3\times310\times6}{25\times1,8\times4}\)
\(A=\frac{18\times123+9\times2\times567+3\times6\times310}{25\times4\times1,8}\)
\(A=\frac{18\times123+18\times567+18\times310}{100\times1,8}\)
\(A=\frac{18\times\left(123+567+310\right)}{180}\)
\(A=\frac{18\times1000}{180}\)
\(A=\frac{18000}{180}\)
\(A=100\)
![](https://rs.olm.vn/images/avt/0.png?1311)
35 + 68 = 103
4 x 8 + 4x 2
= 4 x( 8+2)
= 4 x 10
=40
225+445=670