Need some help (Checkbox problem)

[Caleb_Lo]

I am building an app to calculate something, I want to use checkbox.
How can I relate each checkbox to a number then I can add them up?

Example: (I have A, B, C here, and they related to number 1, 2, 3)
☐ A
☐ B
☐ C

And when I checked box A and C, it will add up A(1)+C(3), and show the answer 4.

[TIMAI2]

Something like this:

[dora_paz]

Another approach with dictionary blocks. Every time two or more checkboxes are checked then they get added and if un checked then subtracted

[Caleb_Lo]

Thank you so much @TIMAI2 and @dora_paz

[Anke]

Or this might be the simpliest way:

It also works with any number of checkboxes.

[Mick_Press]

Hi Anke, where did you get the component "component" from please

[dora_paz]

See how

[Anke]

@Mick_Press

where did you get the component "component" from please

Here is a version with 4 checkboxes:
chbSum4.aia (2.4 KB)

Remove the fourth one again if you don't need it. It's just to show that it also works with more than 3 checkboxes.