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Đọc tiếp
Cau 1: viet 1000 so tu nhien dau tien , hoi chu so 3 co mat bao nhieu lan.
Cau 2:de danh so trang 1 quyen sach nguoi ta dung 1995 chu so.hoi cuon sach day bao nhieu trang.
Cau 3:Giai thich tai sao :
a/so co 4 chu so xyxy khi chia cho so 2 chu so xy lai co thuong la 101.
b/so co 6 chu so xyvxyv khi chia so co 3 chu so xyv lai co thuong la 1001
Cau 4: Cho day so 4,7,10,13,16,.....
a/tim so thu 100 cua day,so thu n cua day .
b/So 45+23 co mat trong day do ko
Cau 5:tim so tu nhien co 5 chu so,biet rang neu them 2 chu chu so vo dang su so do thi duoc so lon gap 3 lan so do co duoc bang cach viet them chu so 2 vao da truoc so do
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