thay chu so thich hop vao dau *
2<21 48<4*9<5*0
cho m x 3 +m+m =m x.....
so thich hop dien vao dau cham la...
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:....
mot phep tru, biet hieu la so be nhat co 2 chu so ma tong cua 2 chu so do bang 7, so bi tru bang 59. tim so tru
CAC BAN GIAI THANH LOI GIAI GIUP TO VOI
AI LAM DAU TIEN TO TICH CHO
so lon nhat co hai chu so ma hieu cua hai so moi so do bang 5 la
cac ban oi giup to voi ai lam dau tien to tich cho
Dien so thich hop vao o trong 1dm cm 10cm dm
4,8,12,...,40
50,45,40,...,20
tim so thich hop dien vao cho trong
đien 3 so thich hop vao tong sau roi tinh
1+3+4+7+11
a x3 + a + a + a x 4 = a x.......so nao thich hop dien vao o trong