Question

khi cộng một số tự nhiên với số thập phân một học sinh đã sơ suất quên dấu phẩy của số thập phân nên kết quả tìm được là 2220 tìm số tự nhiên ban đầu biết tổng đúng là 223.17

Answer 1

vì bạn học sinh đó quên dấu phẩy ở số tập phần nên số đó sẽ tăng thêm 100 lần

tổng lúc sau hơn tổng lúc đầu là:

2220 - 223.17 = 1996.83

số thập phân là:

1996.83 : ( 100 - 1 ) = 20.17

số tự nhiên ban đầu là:

223.17 - 20.17 = 203

đáp số: 203

đúng nha

Answer 2

nhớ phải đấy

Answer 3

SỐ THẬP PHÂN ĐÓ LÀ:

(2220-223.17):99=20.17

SỐ TỰ NHIÊN ĐÓ LÀ:

223.17-20.17=203

Đ/S:203

Answer 4

đáp số: 203

Answer 5

vì sao lại trừ 1

Answer 6

kết quả đúng là 203

Answer 7

203 dung 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%

Answer 8

203 đúng 99,9999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999%