Các câu hỏi tương tự
cho A=33...3(100 chu so 3);B=66...6(100 chu so 6).Tinh A.B
hay cho biet co bao nhieu so co 4 chu so cong lai bang 4 ?
Hay cho biet co ... so khac nhau co 3 chu so la so chan
Giup voi, nhanh
Hay cho biet co tat ca bao nhieu so co hai chu so
Hay cho biet day so:1000,..., 2015 co tat ca bao nhieu chu so 5
cho 6 chu so 1;2;3;4;5;6 . Tong cua tat ca cac so co 5 chu so khong chia het cho 5 lap duoc tu cac so tren la
do biet02041624la so hay la chu
1.tu 1 den 10
A/so lon nhat la:...
B/so be nhat la:...
2.tu 10 den 100
A/so be nhat co 2 chu so giong nhau la:..
B/so be nhat co 2 chu so tron chuc la:...
C/tinh tong cua hai so:.........
cho phan so 17/21 . Hay tim 1 so tu nhien sao cho khi ca tu so va mau so cua phan so da cung cong voi so do thi dc phan so moi co gia tri bang 6/7