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=(367 x 584 + 12345) x (10 - 10)
= (367 x 584 + 12345) x 0
=0
=(367 x 584 + 12345) x (10 - 10)
=(367 x584 + 12345) x 0
=0
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
3570:357-10=0 nha
mà số nào nhân với 0 cũng băng 0
suy ra kết quả =0
HT
k cho mình nha
@@@@@@@@@@@
![](https://rs.olm.vn/images/avt/0.png?1311)
Bài 13 : Tìm x
30240 : x = 42
x = 30240 : 42
x = 720
X x 12 = 2412
X = 2412 : 12
X = 201
57316 : ( X - 8 ) = 623
X - 8 = 57316 : 623
X - 8 = 92
X = 92 + 8
X = 100
( X + 3 ) x 247 = 10755
X + 3 = 10755 : 247
X + 3 = 10755/247
X = 10755/247 - 3
X = 10014/247
X x 37 = 1135
X = 1135 : 37
X = 1135/37
25 x X = 9100
X = 9100 : 25
X = 364
Bài 13
1.720 2.201 3.100 4.162 5. 1135/37 6.364
bài 14
( 367*584+12345 ) * ( 3570: 357 - 10)
= ( 367*584+ 12345 ) * ( 10-10 )
= ( 367*584+12345 ) * 0
= 0
![](https://rs.olm.vn/images/avt/0.png?1311)
(367*584+12345)*(3570:357-10)
=(367*584+12345)*(10-10)
=(367*584+12345)*0
=0
![](https://rs.olm.vn/images/avt/0.png?1311)
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x (17 + 23 + 1 + 35 + 24)
= 12345 x 100
= 1234500
=> 12345 x (17 + 23 + 1 + 35 + 24 )
=> 12345 x 100
=> 1234500
![](https://rs.olm.vn/images/avt/0.png?1311)
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x (17 + 23 + 1 + 35 + 24)
= 12345 x 100
= 1234500
![](https://rs.olm.vn/images/avt/0.png?1311)
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x (17 + 23 + 1 + 35 + 24)
= 12345 x 100
= 1234500
![](https://rs.olm.vn/images/avt/0.png?1311)
12345 x 17 + 23 x 12345 + 12345 + 12345 x 35 + 12345 x 24
= 12345 x 17 + 23 x 12345 + 12345 x 1 + 12345 x 35 + 12345 x 24
= 12345 x (17 + 23 + 1 + 35 + 24)
= 12345 x 100
= 1234500
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