Do os maps 1:25000 and 1:5000 have the same grid references?

Question

Do os maps 1:25000 and 1:5000 have the same grid references?

Answer 1

of coarse , they are only different sizes

Answer 2

The lines of latitude and longitude remain exactly the same on all maps - therefore a grid reference is valid for any map that has latitude and longitude printed on it

Answer 3

ALL OS maps use the same grid  reference system .

Answer 4

Yes but one grid refernce is at a differnt place on the other map. obviously