Các câu hỏi tương tự
tim so co 3 chu so , chu so hang don vi la 1 va neu xoa di chu so 1 do thi duoc so moi gap 3 lan so co duoc khi xoa di chu so hang tram
tim so co 3 chu so , chu so hang don vi la 1 va neu xoa di chu so 1 do thi duoc so moi gap 3 lan so co duoc khi xoa di chu so hang tram
cho mot so co 3 chu so:
chu so hang don vi hon chu so hang chuc la 2 don vi.
chu so hang chuc kem chu so hang tram la 1 don vi
hoi neu doi chu so hang don vi va hang tram cho nhau thi so da cho tang hay giam bao nhieu don vi
tim so co ba chu so biet rang chu so hang don vi la 2va neu xoa di chu so 2 do thi duoc so moi gap 2 lan so co duoc khi xoa di chu so hang tram
tim so co hai chu so biet chu so hang chuc gap ba lan chu so hang don vi va neu doi cho hai chu so do cho nhau thi duoc so moi nho hon so dau 18 don vi
1.tim 1 so biet neu viet them vao ben phai so do co 1 chu so 6 thi ta duoc 1 so moi hon so da cho la 888 don vi
2.cho 1 so co 2 chu so biet neu viet them 1 chu so n vao ca dang truoc va dang sau so do thi ta duoc 1 so moi co 4 chu so . So moi gap 21 lan so da cho . Tim so da cho va so n viet them
tim mot so tu nhien co 5 chu so. biet rang so do co chu hang don vi la 8 va khi xoa di chu so hang don vi cua so do ta se duoc so moi kem so phai tim 31877 don vi
cho mot so co ba chu so ma chu so hang tram la 4.neu xoa bo chu so 4 nay di,ta duoc mot so co hai chu so.biet tong cua so co ba chu soda cho vaso co hai chu soco duoc sau khi xoa chu so 4la 450.tim so co ba chu so da cho ban dau.
tim-mot-so-co-hai-chu-so-biet-tong-cac-chu-so-cua-so-do-bang-12-neu-do-cho-hai-chu-so-cua-so-do-cho-nhau-thi-duoc-mot-so-kem-so-ban-dau-54