-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

a/-2632

b/-232

c/16

7/23.5/29+7/29.18/23-7/29

=(7.5)/(23.29)+7/29.18/23-7/29

=7/29.5/23+7/29.18/23-7/29.1

=7/29.(5/23+18/23-1)

=7/29.(1-1)

=7/29.0

=0

\(\frac{7}{23}\cdot\frac{5}{29}+\frac{7}{29}\cdot\frac{18}{23}-\frac{7}{29}\)

\(=\frac{7}{29}\cdot\frac{5}{23}+\frac{7}{29}\cdot\frac{18}{23}-\frac{7}{29}\)

\(=\frac{7}{29}\cdot\left(\frac{5}{23}+\frac{18}{23}-1\right)\)

\(=\frac{7}{29}\cdot0\)

\(=0\)

37(29-23)-29(37-23)

=37.29-37.23-37.29+29.23

=(37.29-37.29)-(37.23-29.23)

=-23(37-29)

=-23.8

=-184

Ta có :\(37.\left(29-23\right)-29.\left(37-23\right)=37.29-37.23-29.37+29.23\)

                                                                               \(=23.29-37.23\)

                                                                               \(=23.\left(29-37\right)\)

                                                                               \(=23.\left(-8\right)\)

                                                                               \(=-184\)

37. (29 − 23) − 29.(37 − 23)
=[ 37.29 − 37.23 ] − [ 29.37 − 29.23 ]
=(37.29)-(37.23)-(29.37)+(29.23)
=(29.23)-(37.23)
=23(29-37)
=23.(-8)
=-184

37 . (29 - 23) - 29. (37 - 23)

= 37 . 29 - 37 . 23 - 29 . 37 - 29 . 23

= 37 . (29 - 29) - 23 . (37 - 29)

= 37 . 0 - 23 . 8

= 0 - 184 

= 0 + (-184)

= -184

Hok Tốt

chịu

Bằng 0 nha k k t i c k

\(37.\left(29-23\right)-29\left(37-23\right)\)

=\([\left(37.29\right)-\left(37.23\right)]-[\left(29.37\right)-\left(29.23\right)]\)

=(37.29)-(37.23)-(29.37)+(29.23)\

=(29.23)-(37.23)

=23(29-37)

=23.(-8)

=-184