Tim so co 3 chu so biet hieu cua chu so hang tram va hang don vi bang o,hieu cua chu so hang chuc va don vi bang 8
BAI1 TIM SON CO 3 CHU SO MA TONG CAUA HANG CHUC BANG 1/3 CHU SO HANG DON VI VA GAP DOI CHU SO HANG TRAM . BIET SO HANG CHUC LA 2 BAI2 CHO CAC SO 2,5,3,7. HAY VIET TAT CA CAC SO CHAN CO3 CHU SO KHAC NHAU TU CAC SO TREN. BAI3 TIM MOT SO CO 3 CHU SO . BIETCHU SO HANG TRAM GAP DOI CHU SO HANG CHUCVA CHU SOHANG CHUC GAP CHU SO HANG DON VI
em hay tim so co ba chu so ma hieu cua chu so hang tram va chu so hang chuc la 0 con hieu cua chu so hang chuc va chu so hang don vi bang 9
viet so co ba chu so biet chu so hang tram la 1 chu so hang chuc hon chu so hang tram 2 don vi nhung kem chu so hang don vi 3 don vi
Tim so co ba chu soma hieu cua chu so hang tram va chu so hang chuc bang 0 con hieu cus chu so hang don vi bang 8
Bai 4
Viet tat ca cac so co 3 chu so ma chu so hang tram va chu so hang don vi deu = 1
so lon nhat co 2 chu so ma chu so hang chuc
gap 3 lan chu so hang don vi la gi ?
bai 4 viet tat ca cac so co ba chu so ma chu so hang tram va chu so hang don vi deu bang 1 :
tim so co 2 chu so biet tong hai chu so la 13 va hang chuc lon hon hang don vi la
5