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(-29).(85-47)-85.(47-29)
=(-29).38-85.18
=-1102-1530
=-2632
![](https://rs.olm.vn/images/avt/0.png?1311)
(-29).(85-47)-85.(47-29)
=(-29).85+29.47-85.47+85.29
=85.[(-29)+29]+47.(29-85)
=85.0+47.(-56)
=0+(-2632)
(-167) . (67-34) - 67 . ( 34- 167)
=-167.67+167.34 - 67.34+67.167
=167.34-67.34
=34.(167-67)
=34.100=3400
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a) 29.(85-47)+85.(47-29)= 29.85-29.47+85.47-85.29
=(29.85-85.29) -29.47+85.47
=0-29.47+85.47
= -29.47+85.47
= (-29+85).47
=56.47
= 2632
b)47.(23+50)-23.(47+50)= 47.23+47.50-23.47+23.50
=(47.23-23.47)+47.50+23.50
=0+47.50+23.50
=47.50+23.50
=(47+23).50
=70.50
=3500
tích ^.^ ~
a) 29.(85-47)+85(47-29)
=29.38+85.18
=1102+1520
=2622
b)47.(23+50)-23.(47+50)
=47.73-23.97
=3431-2231
=1200
k mình nha...^_^...kb nữa... thanks
![](https://rs.olm.vn/images/avt/0.png?1311)
-29.(85-47) - 85.(47-29)
= -29.85 + 29.47 - 85.47 + 85.29
= ( -29.85 + 85.29) + 29.47-85.47
= 0 + 47.(29-85)
= 47.(-56)
= -2632
- 29 . ( 85 - 47 ) - 85 . ( 47 - 29 )
= - 29 . 85 + 29 . 47 - 85 . 47 + 85 . 29
= ( - 29 . 85 + 85 . 29 ) + 29 . 47 - 85 . 47
= 0 + 47 . ( 29 - 85 )
= 47 . ( - 56 )
= - 2632
![](https://rs.olm.vn/images/avt/0.png?1311)
29.(85-47)+85.(47-29)
29x(85-47)+85x(47-29)
29x38+85x18
1102+1530+
=2632
Chúc bạn may mắn!
![](https://rs.olm.vn/images/avt/0.png?1311)
-29.(85-47)-85.(47-29)
=-29.38-85.18
=-1102-1503
=-2605
-15.(23-29)+23-(15-29)
=-15.(-6)+23-(-14)
=90+23+14
=113+14
=127
-13.(55-29)+23.(15-29)
=-13.26+23.(-14)
=-338+(-322)
=-660
-10.(2+4)-5.(4-3)
=-10.6-5.1
=-60-5
=-65
29(85 - 47) + 85(47 - 29)
= 29.85 - 29.47 + 85.47 - 85.29
= (29.85 - 85.29) - (29 . 47 - 85.47)
= - 47.(29 - 85)
= -47.(-56 ) = 2632
29( 85 - 47 ) + 85( 47 - 29 )
= 29 . 85 - 29 . 47 + 85 . 47 - 85 .29
= -29 . 47 + 85 . 47
= 47(- 29 + 85 )
= 47 . 56 = 3136