=35 x 6 - 35 x2x3 + 35 

=35 x 6 - 35 x6 + 35 

=(35 x 6 - 35 x6) + 35

=0 + 35

=35

Ta có : 35 x 6 - 70 x 3 + 35 = 35 x 6 - 35 x 2 x 3 + 35 = 35 x 6 + 35 x 6 + 35 = 35

`[` Tham Khảo `]`

`35 xx 5 - 35 xx 2 + 35 xx7`

`= 35 xx (5-2+7)`

`= 35 xx 10`

`=350`

= 35 × (5 + 7 - 2)

= 35 × 10

= 350

\(90+32+29-12-9-70\)

\(=\left(90-70\right)+\left(32-12\right)+\left(29-9\right)\)

\(=20+20+20=60\)

giúp mink nha

mink bị âm

\(28+35+62+95+73+69+27+1\)

\(=\left(28+62\right)+\left(35+95\right)+\left(73+27\right)+\left(69+1\right)\)

\(=90+130+100+70=390\)

(28+62)+(35+95)+(73+27)+(69+1)=

90+130+100+70=390

Đs:390

3 x 6 + 3 x 70 + 24 x 3

= 3 x (6 + 70 + 24)

= 3 x 100

= 300

   3 x 6 + 3 x 70 + 24 x 3

= 3 x (6 + 70 + 24)

= 3 x 100 = 300

3,5 x 8 x 3 x 1,25

= ( 3,5 x 3 ) x ( 8 x 1,25 )

= 10,5 x 10

= 105

3 , 5 x 8 x 3 x 1 , 25

= 3 , 5 x 3 x 10

= 35 x 3

= 105

a)4/7x(10/4+4/5)

=4/7x33/10=66/35

b)(17/35x35/17)x(11/5x25/11)

=1x5=5

xin 1 like( outo đúng nhé)

a: \(\frac{10}{4}\times\frac47+\frac47\times\frac45\)

\(=\frac47\times\frac52+\frac47\times\frac45\)

\(=\frac47\times\left(\frac52+\frac45\right)=\frac47\times\left(\frac{25}{10}+\frac{8}{10}\right)=\frac47\times\frac{33}{10}=\frac{132}{70}=\frac{66}{35}\)

b: \(\frac{11}{5}\times\frac{17}{35}\times\frac{25}{11}\times\frac{35}{17}\)

\(=\frac{11}{5}\times\frac{25}{11}\times\frac{17}{35}\times\frac{35}{17}\)

\(=\frac{11}{5}\times\frac{25}{11}=\frac{25}{5}=5\)

125.9,6+125.0,4

=125.(9,6+0,4)

=125.10

=1250

125.9,6+125.0,4

=125.(9,6+0,4)

=125.10

=1250