\(\overline{36,75x4}\) < \(\dfrac{367544}{10000}\)

\(\overline{36,75x4}\) < 36,7544

         vì 36,7504 < 36,7514< 36,7524< 36,7534< 36,7544

           \(x\)      = 0; 1; 2; 3 

b, \(\overline{ab5,728}\) < \(\overline{ab5,7x4}\) < \(\overline{ab5,755}\) 

vì \(\overline{ab5,728}\) < \(\overline{ab5,734}\) < \(\overline{ab5,744}\) < \(\overline{ab5,754}\) < \(\overline{ab5,755}\)

vậy \(x\) = 3; 4; 5 

câu a: 36,75<x4<367544/10000

= 36,75<x*4<36,754

= x=9,1

câu b: 125,728;125,734;125,755

lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

B3: 

a) x = 0

b) 9

B4 :

a) x = 1,2,3

b) x = 0,1,2

B5:

0,21; 0,215; 0,22

3

3;4;5

a) 0 b) 1 c) 200

a, 350 

b, 107

c, 200

từ lần sau đăng đúng lớp vào bn

350

170

200

a) x = -11

b) x = -110

Tìm x, biết:

a) x + 10 là số nguyên âm lớn nhất.

= - 11

b) x + 100 là số nguyên âm nhỏ nhất có 2 chữ số.
= - 110

hỏi chấm số trừ nhiều số hơn số bị trừ thì sao trừ