Question

Tìm số  biết:               220,33 - ab,cd = abc,d
Trả lời: Số đó là 

Answer 1

220,33 - ab,cd = abc,d 

220,33 = ab,cd + 10 x ab,cd

220,33 = ab,cd x (10 + 1)

220,33 = ab,cd x 11

abcd = 220,33 : 11

ab,cd = 20,03

=> abcd = 2003

Answer 2

coi ab,cd la1 phan thi abc,d la 10 phan

tong so phan la : 10+1=11 phan

so abcd la: 220,33:11*100=2003

 ĐS: 2003

Answer 3

2003 la dung