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Bài làm
-359+181-123+350-172
= [ ( -359 ) + 350 ] + ( 181 - 172 ) - 123
= -9 + 9 - 123
= 0 - 123
= -123
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# Chúc bạn học tốt #
![](https://rs.olm.vn/images/avt/0.png?1311)
-359+181+[-123]+350+[-172]
=[[-359]+350]+[181+[-172]+[-123]
=-9+9+[-123]
=0+[-123]
=-12
-359 + 181 + ( -123 ) + 350 + ( -172 )
= [ -359 + ( -172 ) ] + ( 181 + 350 ) + ( -123 )
= -531 + 531 + ( -123 )
= 0 + ( -123 )
= -123
![](https://rs.olm.vn/images/avt/0.png?1311)
= 350 - 359 + 181 - 172 -123
= -9 + 9 - 123
= -123
Bấm L IKE ủng hộ nhá :)))
![](https://rs.olm.vn/images/avt/0.png?1311)
(-359+181)-123+350-172
(-178-123)+350-172
-301+350-172
49-172
=-123
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(-359+181+\left(-123\right)+350+\left(-172\right)\)
\(=-359+181-123+350-172\)
\(=\left(-359-172\right)+\left(181+350\right)-123\)
\(=-531+351-123\)
\(=0-123=-123\)
-359+181+(-123)+350+(-172)
=-359+181-123+350-172
=(-359-123-172)+181+350
=-654+531
=-123
Chúc học tốt!!!
![](https://rs.olm.vn/images/avt/0.png?1311)
\(A=\frac{595959}{454545}-\frac{14141414}{15151515}\)
\(A=\frac{595959:10101}{454545:10101}-\frac{14141414:1010101}{15151515:1010101}\)
\(A=\frac{59}{45}-\frac{14}{15}\)
\(A=\frac{59}{45}-\frac{42}{45}=\frac{17}{45}\)
\(B=\frac{65+891+135+909}{731-47+69-253}\)
\(B=\frac{\left(65+135\right)+\left(891+909\right)}{\left(731+69\right)-\left(47+253\right)}\)
\(B=\frac{200+1800}{800-300}=\frac{2000}{500}=4\)
![](https://rs.olm.vn/images/avt/0.png?1311)
( 260 -359 ) - (-350 + 260 ) = (260 - 260 ) +( -359 +350) = 0 +(-9) = -9
sửa lạu đề tí nha 47 x 0.24 + 53 x0.24 = 0,24.(47+53) = 0,24 . 100 =24
`891 + (359 + 190)`
`=891 + 359 + 190`
`=(891 + 359) + 190`
`=1250 + 190`
`=1440`
891 +( 359 + 190 )
= 891 + 359 + 190
= 1250 + 190
= 1440