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.
So N la so co 2 chu so chia het cho 3.Neu xem chu so 0 vao giua hai so roi cong voi 2 lan chu so hang chuc cua so N ta duoc so moi gap 9 lan so N
tim so co hai chu so biet rang neu ta viet them chu so 1 vao giua hai chu so cua so do ta duoc so moi gap so 9 lan so phai tim.tim so phai tim
tim 1so co 2 chu so biet so do chia het cho 9 . neu viet them chu so 0 vao giua 2 chu so cua so do roi lay so moi tru di 6 lan chu so hang tram ta duoc so bang 8 lan so da cho
Tim 1 so tu nhien co Hai Chu so biet räng neu them Chu so 0 vao giua chu so hang chuc và don vi thi so do gap Len 10 lan neu viet Thêm chu so 1 vao Ben trai so vua nhan thi so do gap len 3 lan??
Ai låm duoc toi cho 2 tk
tim so chia cua mot phep chia , biet rang : so bi chia 410, so du bang 19
a) tim mot so co hai chu so va neu lay so do chia cho chu so hang don vi thi duoc thuong la 8 va du 7
b) tong cua hai so bang 196 . tim hai so do
c)tim so co 3 chu so , biet rang neu viet them mot chu so 3 vao ben phai so do thi no tang them 2217 don vi
1.tim so co ba chu so neu viet them so 1 vao truoc so do ta duoc so moi gap 9 lan so ban dau.
2.Neu ta viet them mot vao ben phai va ben trai cua 1 so ta duoc so co 4 chu so bang 21 lan so ban dau.Hay tim so do
Cac bn giup mk nhe.thank you
tim mot so tu nhien co hai chu so biet rang neu viet them mot chu so 5 vao ben trai so do thi duoc so moi lon hon gap 26 lan so ban dau
tim so co hai chu so biet rang neu viet them chu so 3 vao giua 2 chu so cua so do ta duoc so co 3 chu so gap 11 lan so phai tim
( Giai day du giup mih voi, mih dang can gap. ai dung mih tik)
neu ta viet them chu so 0 vao giua cac chu so cua mot so co 2 chu so ta duoc mot so moi co 3 chu so lon hon so dau tien 7 lan. tim so do
