Hello world!
I'm using Alice3 to do a multiplication problem.
I have a scene with three soccer balls and
What I want to do is ask the user what one soccer call costs
multiply that value by three and display it.
So to do all of that first going to need a variable
and let's call that cost.
and it will be a double, because it could have decimal places.
and I have to pick something for the initial value doesn't matter what.
because I'm going to go to functions
and getDoubleFromUser.
so drag that, and drop it here to replace
that .25 that I put in.
Now the custom text string
is the  prompt and I want that to say
"How much does one soccer ball cost?"
The next thing I'm going to do is create another variable
called totalCost,
using that camel case, with that upper case C.
(You can't have a space.)
And that's going to be a double.
And again, I have to pick something for the initial value.
but this time, for that initial value going to pick math
and it is going to be
something time something.
and that first something is going to be cost,
which you can select when scroll down there,
and the second value
is going to be custom decimal number and I'm going to put in 3.
(I got that messed up, pick cost.)
Now we need to display that somehow, so if we go back to procedures,
We need to select something so I'm going to
select one of those soccer balls and have the soccer ball say,
"The total cost for 3 is ...
If I want a $, I have to put it in there.
And then I'm going to add something to that
And the something I add is going to be totalCost.
and I want to have time to see that
so I'm going to pick 10 for the duration.
Let's run that:  "How much did one soccer ball cost?"
(Put in ) 9.25 ($9.25)
"The cost for 3 is $27.75"
That's exactly right!