How can I create a "QuickMath" entry method on a form

[JRMoates]

I am brand new to the forum [just signed up today] so forgive me if my approach and use is flawed.
That said, I have a form in a 2013 MS Access db that I would like to be able to allow the user to do on-the-fly calculations when entering.


I used the phrase "QuickMath" because that's what QuickBooks allows in a given field within their forms.
For example, when entering sales if there are 3 values [137.50 + 13.25 + 99], is there a way that allows the user to enter the sequence I show rather than have to run the calculation separately and input the sum of 249.75?
Hopefully this makes sense, if not, please let me know.
Thank you!

[isladogs]

Yes using the Eval function and two textboxes which I'll call Text1 and Text2
In design view put this in Text2

=Eval([Text1])

Change to form view and write your calculation in Text1. Do not include an equals sign
The result is shown in Text2.

Any valid calculation can be done with all standard mathematical operators and brackets as appropriate