hieu cua 2 so hap phan la 70.78 neu dich chuyen dau phay cua so tru sang ben phai 1 hang thi hieu moi la 30.64 tim 2 so thap phan do

tong hai so thap phan la 60,1 .Neu dich chuyen dau phay cua so nho sang phai mot chu so thi duoc so moi hon so lon 219,52 don vi .Tim so be

hieu cua hai so thap phan la 70,78. neu dich dau phay cua so tru sang phai mot hang thi hieu moi la 30,64 . tim hai so thao phan do.

1.Cho so N la so co hai chu so chia het cho 3.Neu viet xen so 0 vao giua hai chu so do roi cong no voi hai lan chu so hang chuc cua so N ta duoc so moi gap 9 lan so N.Tim so do

2.Tong hai so thap phan la 60,1.Neu dich dau phay cua so nho sang ben phai mot hang roi dem tru di so lon thi ta duoc 219,52.Tim hai so do.

3.Tim so co hai chu so biet neu ta them so 33 vao giua hai chu so do thi duoc mot so moi gap so phai tim 89 lan.

tong 2 so thap phan la 60,1 neu dich chuyen dau phay cua so nho sang hai 1 chu so thi duoc so moi hon so lon 219,52 don vi tim so be

2 so thap phan co hieu la 13 .21 neu doi doi dau phay cua so be sang phai 1 hang roi cong voi so lon ta duoc 41.15 tim 2 so do

tong 2 so thap phan la 46,64. Neu doi dau phay cua so be sang ben phai 1 hang thi dc so lon. Tim so be 

tong cua mot so tu nhien va mot so thap phan mot hoc sinh quen mat dau phay o so thap phan va cong nhu cong hai so tu nhien nen duoc ket qua la 689 tim so tu nhien do

hieu hai so la 19.8 khi dich dau phay cua so be sang ben phai 1 so thi bang so lon tim hai so do

hai so thap phan co hieu la16,5 neu di dau phay ua so lon ang phai 1 hang so a giu nguyen so be thi hieu 2 so la 306,1.tim 2 s thap phan do