Tim so be nhat co 2 chu so ma thuong hai chu so bang 5.Tim so do ?
tim so be nhat co hai chu so ma tich va thuong cua chu so hang don vi voi chu so hang chuc bang deu bang 3
so be nhat co ba chu so khac nhau ma thuong cua chu so hang tram voi chu so hang chuc bang thuong cua chu so hang chuc voi hang don vi
So be nhat co 3 chu so khac nhau ma, thuong cua phep chia chu so hang tram cho chu so hang chuc bang thuong cua phep chia chu so hang chuc cho chu so hang don vi...............
Cau 1 co tat ca ..... so co 2 chu so ma hieu 2 chu so cua moi so do bang 6
Cau 2 so lon nhat co 2 chu so ma hieu 2 chu so cua moi so do bang 5 . La :.............
Cau 3 so be nhat co 2 chu so ma tong 2 chu so cua moi so do bang 9 . La : .............
tim tong cua so lon nhat va so be nhat co ba chu so ma tong ba chu so cua moi so deu bang 8
tong cua 2 chu so la so be nhat co 2 chu so ma hieu 2 chu so do bang 7 . so hang thu 2 la 9. tim so hang thu 1
bai1 tim so lon nhat co hai chu so ma tong cac chu so bang 15 la.............................................................................. tim sonho nhat co hai chu so ma tong cac chu so bang 5la.............................................
so be nhat co 2 chu so ma tong hai chu so do bang 11