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A=36 x 350 + 1,2 x 20 x 3 + 9 x 4 x 4,5
= 12600 + 72 + 162
= 12834
![](https://rs.olm.vn/images/avt/0.png?1311)
a,1234+567+455
=1801+455
=2256
b, 234+567+864
=1801+864
= 2665
c, 23456+6787+45
= 30243+45
=30288
![](https://rs.olm.vn/images/avt/0.png?1311)
mày ngu thế mày thế mà chả dùng máy tính ngungungungu nhu con dog dog
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A=126+72+163
A=397
B=1/6 x 1,25+0,25
B=1/6x5/4+1/4
B=5/24+1/4
B=11/24
c ko tìm đc
![](https://rs.olm.vn/images/avt/0.png?1311)
\(567\times123+99\times567-222\times467\)
\(=567\times\left(123+99\right)-222\times467\)
\(=567\times222-222\times467\)
\(=222\times\left(567-467\right)\)
\(=222\times100\)
\(=22200\)
\(79\times64+35\times79+79\)
\(=79\times\left(64+35+1\right)\)
\(=79\times100\)
\(=7900\)
Học tốt
567*123+99*567-222*467=567*(123+99)-222*467
=567*222-222*467
=222*(567-467)
=222*100
=22200
79x64+35x79+79
=79x(64+35+1)
=79x100
=7900
![](https://rs.olm.vn/images/avt/0.png?1311)
\(45.6\cdot y+66.9\cdot y-12.6=567\)
\(y\cdot\left(45.6+66.9\right)=579.6\)
\(y\cdot112.5=579.6\)
\(y=5.152\)
45,6 . Y + 66,9 . Y - 12,6 = 567
y.(45,6+66,9)-12,6=567
y.112,5-12,6=567
y.112,5=579,6
y=5,152
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![](https://rs.olm.vn/images/avt/0.png?1311)
\(567+43\times43+568\times67\)
\(=567+1849+38056\)
\(=40472\)
567 + 43 x 43 + 568 x 67
= 567 + 1849 + 38056
= 2416 + 38056
= 40472