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can someone help me in how to build an instant phone calculator in bubble.io

Sorry, but what is this?

i mean i wanted to build a calculator app,

something like this.

i have tried all my effort but i didn’t get it so i would be glad if you could help me with that…please

You can do it using **Custom States** and simple math operations…

Take a look in this video to understand more about **Custom States**:

What is your main issue with it?

thanks, i will get back to you

You can use the Math.js offline plugin to support calculation

really? how does it work

please how can i append the numbers into the input element

One example of one way to approach this:

- create a popup that you will never open
- add two groups of type number
- name each group respectively as “data first number” and “data second number”
- build the calculator on the page using square groups … for the numbers make each of them of type number and their data source each respective number … and for multiplication add a group of no type and a text with an “X” and call it “times”
- let’s say that you want to multiply 9 times 8 …
- on click of group number 9 use the action display to group and send the number 9 to the “data first number” … and on click of number 8 do the same but send it to “data second number” … you will now have stored numbers 8 and 9 in each of those groups
- add a third group to the popup that multiplies DFN times DSN and have it be a source of data to the area where you show the result

… the above is an oversimplification of one of many approaches to take for this … and it lacks logic to identify first click va second click … and more! … but it is intended to shed a bit of light of one way to approach your project

Best of luck

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