9.36x0.1=0.936

0.02x0.01=0.0002

34/10=3.4

256/100=2.56

2.34/100=0.0234

3.456x1000=3456

3.50x100=350

6.2x0.01=0.062

3.58x0.001=0.00358

23.56x0.1=2.356

129.34/100=1.2934

53.8x0.001=0.0538

0,36

0,002

3,4

2,56

0,0234

3456

350

0,62

0,0358

2,356

1,2934

0,538

tick nha

a) 18,06.4:42+58:25=1,72+2,32=4,04

b) 2,34:(2,34-1,09).3,5-2,006=(2,34:1,25.3,5)-2,006=6,552-2,006=4,546

   2,34 : (2,34 - 1,09) x 35 + 21,086 

= 2,34 : 1,25 x 35 + 21,086

= 1,872 x 35 + 21,086

= 65,52 + 21,086 86,606

Chúc bạn học tốt !!!!!!!!!!!!!!!!!!!!!! 

2,34 : ( 2,34 - 1,09 ) × 35 + 21,086

= 2,34 : 1,25 × 35 + 21,086

= 1,872 × 35 + 21,086

= 65,52 + 21,085

= 86,606

Cho mk 1 tk nhé

2,34x10=23,4

76,204x10=762,04

2,34x100=234

76,204x100=7620,4

2,34x1000=2340

76,204x1000=76204

Khoanh C nhé bn

chọn câu C nha 

k nha 

 2,34 : ( 2,34 - 1,09 ) . 35 + 21,086

= 2,34 : 1,25 . 35 + 21,086

= 1,872 . 35 + 21,086

= 65,52 + 21,086

= 86,606

2,34 : ( 2,34 - 1,09 ) . 35 + 21,086 

= 2,34 : 1,25 . 35 + 21,086 

= 1,872 . 35 + 21,086 

= 65,52 + 21,086 

= 86,606 

\(x:2,34=4\) x \(5\)

\(x:2,34=20\) 

        \(x=20\) x \(2,34\)

       \(x=46,8\)

x : 2,34 = 4 x 5

x : 2,34 = 20

x           = 20 x 2,34 

x           = 46,8

       HT

\(1,26:x+2,34:x=5\)

\(\Leftrightarrow\left(1,26+2,34\right):x=5\)

\(\Leftrightarrow3,6:x=5\)

\(\Leftrightarrow x=3,6:5\)

\(\Leftrightarrow x=0,72\)

Vậy x = 0,72

_Chúc bạn học tốt_

1,26 : \(x\)+ 2,34 :\(x\)= 5

<=> (1,26 + 2,34 ) : \(x\)= 5

<=> 3,6 : \(x\)= 5

<=> \(x\)= 5 x 3,6 = 18

T mình nha

Chúc bạn học tốt ~<>

X x 0,5 x 1,8 = 2,34

X x (0,5x1,8) = 2,34

X x 0,9 = 2,34

X = 2,34 : 0,9

X = 2,6