Punctuation and symbols on the Magic Keyboard

Hi Maya_Carolina, thank you for posting in Apple Support Communities.

Can I suggest that you update to the latest iPadOS 15.3 (if you have not done this already) as updates can help resolve some problems. The following link can help you:

https://support.apple.com/en-au/HT204204

Can I also suggest that you check your keyboard language to ensure it is correct as follows:

Settings > General > Keyboard > Keyboards e.g. QUERTY etc, and also

Settings > General > Keyboard > Hardware Keyboard to ensure it is set to the correct country.

https://support.apple.com/en-au/guide/ipad/ipad1aa5a19a/ipados

You can also check that your iPad is set to the correct language and region as follows:

Settings > General > Language & Region > iPad Language

https://support.apple.com/en-au/HT204031

Sometimes a 'Force Restart' can also resolve these issues as per the following link:

https://support.apple.com/en-au/guide/ipad/ipad9955c007/ipados

However, you can also contact Apple Support as follows:

• Online:--> Genius Bar Reservation and Apple Support Options - Apple;
• Contacting a local Apple Store or AASP among the list provided above but also again as follows Apple – Location Selector; or
• Using the "Apple Support" app, available and downloadable from App Store. 

Maya_Carolina wrote:

When I try to use the punctuation in the keyboard I get something different that is actually in the keys.

For example: I try to use the interrogation point(?) and I get an underline(_)

Go to settings > general > keyboard > hardware keyboard and tap over at the right edge. Make sure that you have 'US" checked and NOT "automatic" or something else.

Also make sure that in settings > general > keyboard > keyboards you have only one item on the list, and that item is called "English".

The example you mention indicates you are using a Spanish keyboard mapping instead of US.