tim so co nam chu so ma tong cua nam chu so do la 8 va chu so hang chuc nghin gap 3 lan chu so hang chuc
tim so co 5 chu so chu so hang chuc nghin gap 6 lan chu so hang tram va tong cac chu so do bang 7
tim so co 5 chu so co chu so hang chuc nghin gap 6 lan chu so hang tram va tang cac chu so cua so do bang 7
a la so can tim co 5 chu so .chu so hang chuc nghin hon kem hang nghin la 6 don vi. chu so hang don vi bang 1/3 chu so hang nghin
tim so tu nhien co 4 chu so khac nhau lon hon 3142 ma co tong cac chu so bang 6 va chu so hang chuc be hon chu so hang don vi
TIM SO CO BA CHU SO BIET TRUNG BINH CONG 3 SO DO BANG 3 ,CHU SO HANG DON VI GAP DOI TONG CAC CHU SO HANG TRAM VA HANG CHUC
tim so co 5 chu so ma chu so hang chuc nghin la 3, neu xoa chu so 3 do thi duoc so co 4 chu so bang 1/9 so can tim
viet 1 so co 5 chu so khac nhau biet chu so hang nghin gap 3 lan hang chuc, hang tram bang 1/4 hang don vi
Tim mot so co ba chu so biet trung binh cong cua ba so do bang 2va chu so hang tram bang tong cac chu so hang chuc va hang don vi