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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 :
Bai 4
Viet tat ca cac so co 3 chu so ma chu so hang tram va chu so hang don vi deu = 1
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
tim so co 2 chu so biet tong hai chu so la 13 va hang chuc lon hon hang don vi la
5
so 95 co hieu cua chu so hang chuc va chu so hang don vi la
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
1/ tinh : 1 giờ : 3 ...phút? 2/ lop 2a co 4 ban; lop 2b co 5 ban du thi violypic cap thanh pho . Cac ban cua hai lop bat tay chuc mung nhau moi khi di moi nguoi mot lan. Hoi co tat ca bao nhieu cai bat tay?Biết rằng các bạn trong cùng lớp ko bat tay nhau.3/ so be nhat co 3 chu so khac nhau cua phep chia chu so hang tram cho chu so hang chuc bang thuong cua phep chia chu so hang chuc cho hang don vi la so.......4/ cho day so :0,1,2,3,6,11,...So thich hop tiep theo cua day so do la:...5/ so lon...
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1/ tinh : 1 giờ : 3= ...phút?
2/ lop 2a co 4 ban; lop 2b co 5 ban du thi violypic cap thanh pho . Cac ban cua hai lop bat tay chuc mung nhau moi khi di moi nguoi mot lan. Hoi co tat ca bao nhieu cai bat tay?Biết rằng các bạn trong cùng lớp ko bat tay nhau.
3/ so be nhat co 3 chu so khac nhau cua phep chia chu so hang tram cho chu so hang chuc bang thuong cua phep chia chu so hang chuc cho hang don vi la so.......
4/ cho day so :0,1,2,3,6,11,...So thich hop tiep theo cua day so do la:...
5/ so lon nhat co 3 chu so khac nhau ma tong cac chu so cua so do bang 21la:....
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
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...
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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