tim so co 4 chu sobiet rang abcd 4abcd=dcab
Những câu hỏi liên quan
tim 1 so co 3 chu sobiet rang neu xoa di chu so 5 o hang don vi thi so do giam 311 don vi.tim so do?
tim 2 so khi so do co 2 sobiet rang neu viet them chu so 0 vao giua 2 so do ta duoc so moi gap 9 lan so da cho
ai dung mink tick
tim so co 4 chu so co dang abcd biet rang abc+acc+dbc=bcc
Tim so co bon chu so co dang abcd , biet rang abc+acc+dbc=bcc
tim so co 4 chu so abcd, biet rang abd la so chinh phuong, neu cong them 72 don vi thi duoc mot so chinh phuong
cho : 2bx - 3cy /a= 3cx-az/2b = ay-abx/3c
chứng minh rằng : x/a=y/2b=z/3c
Đúng 0
Bình luận (0)
Tim so co bon chu so dang abcd biet rang abcd+ abc+ab+a= 4321
Bai 1 : a) Tim abcd biet : a x bcd 1001 b) Tim ab ; biet ab x aba ababBai 2 Tim so co hai chu so, biet rang neu viet them chu so 6 vao ben trai so da cho thi duoc so moi gap 7 lan so cu.Bai 3: Tim so co ba chu so, biet rang neu viet them chu so 3 vao ben trai so da cho thi duoc so moi gap 7 lan so doBai 4 :a) Tim cac so a7b cung chia het cho 5 va 9 b) Tim cac aso 1ab cung chia het cho 5 va 3Bai 5 : Tim so co hai chu so, biet rang so do chia cho hang don vi cua...
Đọc tiếp
Bai 1 :
a) Tim abcd biet : a x bcd = 1001 b) Tim ab ; biet ab x aba = abab
Bai 2 Tim so co hai chu so, biet rang neu viet them chu so 6 vao ben trai so da cho thi duoc so moi gap 7 lan so cu.
Bai 3: Tim so co ba chu so, biet rang neu viet them chu so 3 vao ben trai so da cho thi duoc so moi gap 7 lan so do
Bai 4 :
a) Tim cac so a7b cung chia het cho 5 va 9 b) Tim cac aso 1ab cung chia het cho 5 va 3
Bai 5 : Tim so co hai chu so, biet rang so do chia cho hang don vi cua no thi duoc thuong la 6, du 5.
Bai 6: Cho so co hai chu so trong do chu so hang don vi la 7. Tim so da cho, biet rang neu chia so do cho tong cac chu so cua no thi duoc thuong la 5 va du 12.
tim so co 3 chu so,biet rang khi viet them chu so 1 vao ben trai so do thi duoc so co 4 chu so gap 9 lan so phai tim
tim so co 3 chu so,biet rang khi viet them chu so 1 vo ben trai so do thi duoc so co 4 chu so gap 9 lan so phai tim