How do you add three numbers up?

I am trying to design a three number calculator. Can somebody help me understand how to add three variables as I've only found how to add two variables in "math"?

Hello Angela,

if you click on the gear you can drag a third (or more) number:


You could also make a new variable called subtotal, initially zero, then for each number set subtotal to subtotal plus that number.

This does not require additional sockets in the blocks editor and fits better with lists.


I did not know that. Thank you so much!

Thank you, Ramon and ABG.

I've got another question here:

  • For a three number calculator, I need to specify two operators, such as "+" and "+". Should I incorporate the two operators into a list?

Show us how you would do that?