Help me please (Calculator project)

So i have to do the “+/-” button on calculator which changes the mark infront the number. For example i click on number 8 and then on “+/-” button and it must change to negative eight. Here is my try to do it but nothing worked so far.

Try my project Thunkable
Just see !!

You dont have the “+/-” button which i need so much

Okay but I send my link for good UI

The image you shared will not display “-” in front of the number. The code will set app variable Display to True or False.

Can i share my project with You so You could help me please?

Do this.

image

This one worked but calculator counts wrong. Example: -5 + 5 = 10, not 0.

This means you have problems in another place in your code.

I need this to not just be visually “-” mark but mathematical element

The code I showed you is 100% mathematical. There is a problem somewhere in your app.

May i show You the code please?

OK. But tell me where are you testing in your code so I don’t have to read all the code if it is a big one.

Thunkable uncollapsed blocks are where im testing

https://x.thunkable.com/copy/f1904e63dd37479c8c9ecd7d325c7a1c

image

Check this and let me know.

Works perfectly only when i want first digit to be negative but when i choose second digit as negative the button appears into divide button. For example -4 + 3 = -1 (works fine) 8 + (-4) = 2 for some reason, not 4.

Check how you process your input. I will not be able to go through all the blocks.

Now everything is working perfectly! Thank you so much!

I quickly checked you code and found that you have TWO places for the “PlusMinus” button. This was the problem because the other one is “/”
so 8/-4 = -2