How do i delete multiple photos (by the hundreds) from my nikon d60 camera? what i only know is i select the photos one by one...is there a way i can delete them by category or by date for example or by multiples of 10, 20, 30 etc?

The best way to do it is remove your card and put it in a computer"s card reader. After the card is opened up and you can see the pictures, click on 1 picture then push Ctrl and A. This will select all the photos on the card. Then simply press delete. If you are not looking to delete all of them, you can click a picture you want to delete, then press Ctrl while clicking any other pictures you want to delete. After finished, simply press delete on your keyboard.

There is no way on the D60 that (I am aware of) to delete multiple pics straight from the camera without going to each individual one.