Các câu hỏi tương tự
mot so tu nhien co hai chu so. Chu so hang don vi gap 2 lan chu so hang chuc. Neu them chu so 1 vao giua chu so ay thi duoc 1 so moi lon hon so ban dau la 370. Tim số ban đầu.
giai giup mk vs cac bn . aj giaj dc mk cam on rat nhiu.
tim so tu nhien co 2 chu so biet rang chu so hang chuc lon hon chu so hang don vi la 5 va khi dao nguoc thu tu 2 so do ta duoc so moi =3/8 so ban dau
tim tat ca cac so chinh phuong gom 4 chu so biet rang khi ta them 1 don vi vao chu so hang nghin them 3 dom vi vao hang tram them 5 don vi vao hang chuc them 3 don vi vao hang don vi ta van co 1 so chinh phuong
1so tu nhien co 2 chu so.chu so hang don vi gap 2 lan.neu them chu so1 vao giua 2 so ay thi duoc 1 so moi hon so ban dau 370.tim so ban dau
mot so tu nhien co 5 chu so. biet rang viet them 1 vao ben phai va them chu so1 vao ben trai thi ta duoc so moi lon gap 3 lan so ban dau. tim so ban dau
mot so tu nhien co 2 chu so voi tong cac chu so bang 14. neu viet nguoc lai thi duoc 1 so tu nhien co 2 chu so ,lon hon so ban dau 18 don vi . tim so tu nhien ban dau
giai cu the
tim hai so tu nhien co hai chu so biet tong hai chu so do bang 10 va neu viet theo thu tu nguoc lai thu duoc so moi kem so phai tim 54 don vi
tim so co 4 chu so biet rang chu so hang tram, hang nghin, chuc, don vi theo thu tu do lam thanh 4 so tu nhien lien tiep tang dan
tim mot so chinh phuong co 4 chu so biet so gom 2 chu so dau lon hon so gom 2 chu so sau la 1 don vi