111111111111111111111111111111111111111111+99999999999999999999999999
=1111111111111111111111111111111111111111111+99999999999999999999999999
tk nha
333333333333/99999999999999999999999999
(dien duoi dang so thap phan)
số99999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999.Có bao nhiêu số không
Cho dãy số sau:
3,89,175,.....
Hỏi số thứ 2795 là số nào?
Một ô tô đi từ tỉnh A đến tỉnh B. Mỗi giờ đi được 50 km. Biết rằng nếu ô tô đó đi được 12 quãng đường và 75 km thì còn phải di tiep14 quãng đường mới tới tỉnh B.Tính thời gian ô tô đi từ tỉnh A đến tỉnh B
tìm 2 số có hiệu bằng 603, biết nếu xóa chữ 9 ở hang đơn vị của số lớn thì được số bé
[_] 1
__ + 4 = ____
5 5
4 20 1
---- : ------- = ------
5 [_] 5
[_] là ô trống nhé! Giúp mình gấp!
Lớp 4A và lớp 4B của Trường Tiểu học Bình Minh quyên góp được 126 mảnh giấy vụn .Trong đó , số giấy vụn thu được của lớp 4A bằng 3/4 của lớp 4B . Hỏi mỗi lớp quyên góp được bao nhiêu kg giấy vụn ?
