Question

Tìm một số thập phân biết nếu dịch chuyển dấu phẩy của số đó sang trái 1 hàng thì được số mới kém số phải tìm là 116,775

A. 12,975

B. 10,6159

C. 1,2975

D. 129,75

Ai viết lời giải hay nhất mình tick cho

Answer 1

theo mình thì D

vì kém số phải tìm 116,775 thì số đó phải lớn hơn 116,775 

D là số duy nhất lớn hơn 116,775 nên D đúng

Answer 2

nếu không tin thì thử lại đi

chính xác 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 3

Bạn có thể giải thích kĩ hơn bằng cách giải đi, ví dụ bây giờ cả bốn đáp án đều lớn hơn 116,775 thì sao?

Answer 4

129,75

Answer 5

đáp án D nha

Answer 6

ê cho mik hỏi violympic đây là vòng mấy vậy ???

Answer 7

129.75 nhé

Answer 8

vong 12

Answer 9

116.775 là sai 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Answer 10

116,775 đấy bạn ạ 

Answer 11

129,75 hay 116,75 vậy

Answer 12

đáp án là : 129,75

đúng 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

Answer 13

mọi người ơi làm sao để viết câu hỏi để hỏi vậy

Answer 14

theo mình là đáp án D

Answer 15

129,75 đó mình lam trong violimpic rồi đấy

Answer 16

00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 17

Đáp án D nha đúng:

1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 18

129 75

Answer 19

Ta cũng có thể làm theo cách sau:

Nếu dịch sang trái một hàng thì ta phải chia 9 sau đó nhân lại 10

Ta có: 116,775/9*10=129,75

Đáp số: 129,75

Answer 20

D là đúng

Answer 21

đáp án của mình là D mình thi rồi nên biết đáp án

Answer 22

đáp án là D nha các bạn ra 129,75 cô giáo hướng dẫn mình giải rồi nha các bạn cứ yên tâm đi nhé! đúng 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%%%%%%%%%%%%%%%%%