abc,d= abcd/10
a,bcd=abcd/1000
abcd/10 + abcd/1000 = 349,056
abcdx100 + abcd = 349056
abcd=349056/101
abcd=3456
Hiệu 2 số là 345,6-3,456= 342.144
biet tong hai so thap phan la abc,d va a,bcd la 349,056
tim hieu hai so do
1.Tim 2 so thap phan biet thuong cua chung bang hieu cua chung va bang 0,75
2.Tim 2 so thap phan biet thuong cua chung bang hieu cua chung va bang 1,25
3.Tim 2 so thap phan biet thuong cua chung bang tong cua chung va bang 1,5
Cau 1 ; Tim 2 so biet thuong cua chung = 0,4 va biet hieu cua chung = 23,4
Cau 2; Tim so du cua phep chia 46,68 : 15 neu chi lay thuong co 2 chu so o phan thap phan
Cau 3; Tim 2 so thap phan biet thuong cua chung = tong cua chung va = 1,5. [ phai viet ket qua la so thap phan gon nhat ]
1. hieu cua hai so thap phan; /abc,d va /a,bcd la 583,704. hay tinh tong hai so do. giup minh nhe cac ban dep trai dep gai nhat nha.
hieu 2 so thap phan la 22,2.khi cong 2 so thap phan do voi nhau,ban ly da dich nham dau phay cua so be sang trai 1 chu so nen tong tim duoc la 92,93.Tim tong dung cua 2 so thap phan do
Khi cong mot so thap phan voi mot so tu nhien , do so suat mot hoc sinh da quen dau phay o so thap phan va cong nhu hai so tu nhien nen ket qua tim duoc la 482. Tim hieu cua hai so do biet tong dung cua hai số là 214 ,7.
Tong 2 hai so thap phan va mot so tu nhien bang 1998,64 .Neu bo dau phay o so thap phan thi duoc hieu cua so tu nhien va so thap phan bang 894. Tim hai so do ?
2 so thap phan co hieu la 10,2 khi cong hai so do voi nhau ma ban binh da dich nham dau phay cua so lon sang trai 1 hang nen tong tim duoc la 28,74 tim tong dung cua 2 so thap phan do
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.