Các câu hỏi tương tự
ban an phai tim tat ca cac so co 3 chu so lon hon 500 ma tong cac chu so cua moi so do deu bang 12 dong thoi chu so hang don vi bang trung binh cong cua chu so hang tram va hyang chuc hoi ban an tim duoc nhieu nhat bao nhieu so thoa man yeu cau
Tim so trung binh cong cua tat ca cac so co 4 chu so khac nhau lap tu cac chu so 1,3,5,7 . minh dang voi
tinh trung binh cong tat ca cac so chan co 2 chu so. hoi trung binh cong co tat ca cac so chan co 2 chu so la
Ban An phai tim tat ca cac so co 3 chu so lon hon 500 ma tong cac chu so cua moi so do deu = 12, dong thoi chu so hang don vi = trung cong cua chu so hang tram va hang chuc. Hoi ban An tim duoc nhieu nhat may so thoa man yeu cau?
a, Cho cac so : 3 ; 4 ; 5 viet tat ca cac so khac nhau co 3 chu so tren .
b, Tinh nhanh tong cac so vua lap .
c, Tim trung binh cong cua cac so vua lap.
trung binh cong cua tat ca cac so co 2 chu so chia het cho 7 la
trung binh cong tat ca cac so tu nhien co 3 chu so = ...
Tim tat ca cac so co ba chu so sao cho neu dem moi so cong voi 543 thi duoc so co 3 chu so giong nhau?
Bài 1:cho day so 1;3;5;7;......;x( gom 10 chu so)
a) tim tong cua day so
b) tim trung binh cong cua day so
Bài 2: co ba ban choi tem. an co so tem bang trung binh cong cua ca ba ban. so tem cua hung nhieu hon trung binh cong so tem cua ca ba ban la 6 con tem. phong co 18 con tem. hoi an va hung moi ban co bao nhieu con tem?