Các câu hỏi tương tự
thay cac dau * boi cac chu so thich hop de:*1994* chia het cho 99
thay cac chu so a,b,c boi cac so thich hop
206abc : 501= abc
ghi cach giải ra hộ mình với
thay*boi cac chu so thich hop duoi dang hop so.
a. 3*
b. 7*
cac dau *va cac chu boi cac chu so thich hop
a,*8*3x9=70*7*
Thay cac chu so a,b,c boi ca chu so thich hop de so A= 579abc chia het cho ca ba so 5;7;9
Thay các chữ boi cac chu so thich hop
a, ab+bc+ca=abc
b,abc+ab+a=874
minh dang can ket qua
thay chu a va dau * boi chu so thich hop de aaa x a = ***a
cac chu so o dau * ko nhat thiet phai bang nhau
a, phan tich so 111 ra thua so nguyen to roi tim tap hop cac uoc cua 111.
b, thay dau * boi chu so thich hop:
** . * =111
thay dau x boi cac so thich hop de cac so sau day la cac so nguyen to 12x ; 36x