neu sen vao giua cac chu so cua mot so co hai chu so chinh so do ta duoc so moi co bon chu so va gap 99 lan so ban dau tim so do ?

neu xen vao giua cac chu so co 2 chu so chinh so do ta duoc so co 4 chu so va gap 99 lan so can tim?

neu xen vao giua cac so cua mot so co hai chu so chinh so do ta duoc so moi co bon chu so gap 99 lan so ban dau.tinh so bn dau

=>CAC BN LAM ON GHI RO CACH GIAI,AI NHANH DUNG NHAT MK TICK 

neu xen vao giua cac chu so cua 1 so co 2 chu so kem so do 1 don vi thi se duoc 1so co 4 chu solon gap 9 lan chu so ban dau

CAC BAN GIUP MINH GIAI BAI NAY VOI

tim so tu nhien co hai chu so biet neu biet xen vao giua 2 chu so thi so tu nhiencua no chinh so do thi so do gap 99 lan

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.

tim so co hai chu so biet rang neu viet them chu so 0 xen vao giua hai chu so cua so do ta duoc so moi gap 66 lan so can tim.

Cho hai so tu nhien co hai chu so,neu them vao giua hai so do chinh hai so do ta duoc so moi gap 99 lan so da cho.Tìm hai so do.

tim so tu nhien co hai chu so biet rang neu viet chu so 0 xen giua so hang chuc va hang don vi cua so do ta duoc so moi gap 10 lan so phai tim neu viet chu so 1 vao ben traiso vua nhan thi so do gap len 3 lan