tich cua day so sau co phan thap phan co bao chu so:1,5*1.6*2.6*3.6*...*200.6
cac so thap phân co phan nguyen bang nhau, phan thap phan moi so co mot chu so khac 0 va khac nhau. hoi tich cua tat ca cac so do co phan thap gom bao nhieu chu so
Có lẽ bn nên viết tiếng việt có dấu sẽ dễ hiểu hơn đó
^&^
Cac chu so phan muoi , phan tram cua mot so thap phan co hai chu so o phan thap phan la hai so tu nhien lien tiep co tong bang 11. Tich cac chu so o phan thap phan bang phan nguyen cua so do.tim so thap phan do !
Giai chi tiet ho minh nhe!
cho tich sau:
0,9 x 1,9 x 2,9 x 3,9 x . . . x 18,9
a) Khong viet ca day,cho biet tich nay co bao nhieu thua so?
b) Tich nay tan cung bang chu so nao?
c) Tich nay co bao nhieu chu so phan thap phan?
a) Mỗi thừa số cách nhau : 1.9 - 0.9 = 1 ( đơn vị )
=> Có (18,9 - 0.9 ) : 1 + 1 = 19 ( thừa số )
b) Vì tất cả các thừa số đều có tận cùng bằng 9 => Tích có tận cùng bằng 1 khi có chẵn thừa số; bằng 9 khi có lẻ thừa số
Mà từ a) có lẻ thừa số ( 19 ) => tích có tận cùng = 9
c) Có 19 cs thập phân
viet them chu so 0 vao ben phai phan thap phan cua moi so thap phan de cac so thap phan duoi day deu co hai chu so o phan thap phan
74,6
284,3
401,2
10,4
Nếu nhân tat ca cac so thap phan co phan nguyen laf 5 phan thap phan co 1 chu so khac nhau va khac 0 thi phan thap phan cua tich co bao nhieu chu so khong ke chu so 0 o tan cung ben phai
k co minh mot cai
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3 chuyện lạ :
- Người hỏi viết đề không dấu đọc mãi cũng chẳng hiểu
- Người trả lời viết gì cũng chẳng hiểu
- Người thứ 3 kick vào bài người trả lời cũng chẳng hiểu
Thế giới ngày nay lắm chuyện lạ ý quên diễn đàn hỏi đáp lắm chuyện lạ.
cs cái để giải thck nhg cái trên :
- ng viết đang vội nên ko cs thể viết dấu
- ng ở dưới trả lời cx ko hiểu nên ko bít trả lời thế nào !
bn hãy nhớ nhg điều mk nói nhé !
1..Voi cac chu so 0;1;2;8.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 2 chu so o phan nguyen
2..Voi cac chu so 2;8;1;5.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 2 chu so o phan nguyen
3..Voi cac chu so 0;4;6;8.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 3 chu so o phan thap phan
4..Voi cac chu so 0;2;4;6.Hoi lap duoc bao nhieu so thap phan co du 4 chu so da cho ma co 2 chu so o phan thap phan
mk biết câu 1 thui ,
chắc là 6 nhé :>
tim tong cua 2 so thap phan biet so thap phan thu nhat co phan nguyen la so lon nhat co mot chu so va phan thap phan la so lon nhat co 2 chu so khac nhau , so thu 2 hon so thu nhat 17,3.
vi tich sau co chu so tan cung la so nao va co bao nhieu chu so thap phan ?0,9*1,9*2,9*3,9*.....*18,9
Cac chu so phan muoi, phan tram, phan nghin cua mot so thap phan co 3 chu so o phan thap phan la 3 so le lien tiep . Tong cac chu so o phan thap phan bang phan nguyen cua so do, cac chu so o phan nguyen va phan thap phan deu khac nhau . Tim so thap phan do ?