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17464 - 17464 : 74 - 74 x 158
= 158 x ( 17464 - 17464 ) : ( 74 - 74 )
= 158 x 0 : 0
= 0 x 0
= 0
![](https://rs.olm.vn/images/avt/0.png?1311)
a: \(17464-17464:74-74\cdot158\)
\(=17464\cdot\left(1-\dfrac{1}{74}\right)-74\cdot158\)
\(=17464\cdot\dfrac{73}{74}-74\cdot158\)
\(=5536\)
![](https://rs.olm.vn/images/avt/0.png?1311)
18 x 203 - 18 x 34 - 1020 : 68
= 18 x ( 203 - 34 ) - 15
= 18 x 169 - 15
= 3042 - 15
= 3027
2400 : 300 + 1368 : 38 + 276
= 8 + 36 + 276
= 44 + 276
= 320
85760 : 134 + 18 x 34 - 1020 : 68
= 640 + 612 - 15
= 1252 - 15
= 1237
603 x 120 - 331250 : 625
= 72360 - 530
= 71830
18*203-18*34-1020:68 = 3654- 612-15 = 3042-15 = 3027 2400 :300+1368:38+276 =8+36 +276 =44+276 =320 85760 :134+18*34- 1020:68 = 640 +612 -15 = 1252 -15 =1237 603*120 -331250 :625 =72360 -530 = 71830
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650 x 34 + 34 x 2 x 135 + 34 x 80
= 650 x 34 + 34 x 270 + 34 x 80
= 34 x ( 650 + 270 + 80 )
= 34 x 1000
= 34000
Tick nha
650 x 34 + 34 x 2 x 135 + 34 x 80
= 650 x 34 + 34 x 270 + 34 x 80
= 34 x ( 650 + 270 + 80 )
= 34 x 1000
= 34000
![](https://rs.olm.vn/images/avt/0.png?1311)
\(n\times68-24\times n-n\times34=100\)
\(n\times\left(68-24-34\right)=100\)
\(n\times10=100\)
\(n=100:10\)
\(n=10\)
Vậy \(n=10\)
n x 68 - 24 x n - n x 34 = 100
n x (68-24-34) = 100
n x 10 = 100
n = 100:10
n = 10
Vậy n=10
![](https://rs.olm.vn/images/avt/0.png?1311)
(26 x 27 + 26 x 73) x (30 x 31 - 30) x (34 x 110 - 55 x 68) x (55 x 68 + 55 x 32)
= [26 x (27 + 73)] x [30 x (31 - 1) x (34 x 55 x 2 - 55 x 68) x [55 x (68 + 32)
= (26 x 100) x (30 x 30) x [68 x 55 - 55 x 68) x (55 x 100)
= 2600 x 900 x (68 x (55 - 55) x 5500
= 2600 x 900 x (68 x 0) x 5500
= 2600 x 900 x 0 x 5500
= 0
vì 0 nhân với số nào cũng bằng 0
![](https://rs.olm.vn/images/avt/0.png?1311)
=(2.34).135+(17.2).80+650.34
=34.(135+135+80+650)
=34.900
=30600
167960 - (167960 : 68 - 68 x 34 )
= 167960 - ( 2470-2312 )
= 167960 -158
= 167 802
Asuna:
167960 - (167960 : 68 - 68 x 34)
= 167960 - (2470 - 2312)
= 167960 - 158
= 167802
Tham khảo nha!