Need some help with calculations

[dotchieJack]

When I fill in the first textbox (textbox1) and i push the button 'bereken U-waarde binnenwand' then the calculation is correct but when i fill more textboxes (2, 3, 4 or 5) then the callculations are not correct anymore.
Someone please help
File included
Thanks in advance

 

[Chihiro]

Try nesting each of TextboxX.Value in Val(). Otherwise, you'll probably get Type mismatch error.

 

[Belleke]

Thank you for your aswer
Tryed Val() already

 

[Chihiro]

I'm assuming Belleke & dochieJack is one and same person...

Unless your calculation itself is off. I'm getting the correct answer by nesting it in Val().


See attached as well.

If this isn't the correct answer, I'd recommend posting arithmetic calculation broken out in steps (ex. 0.5 + 0.2 + 0.17 = 0.87; 0.87/1.05 = 0.828571...; 0.828571... - 0.17 = 0.658571...).

 

[dotchieJack]

I'm assuming Belleke & dochieJack is one and same person..

Not realy, Belleke is my daughter, I was cooking, so I asked her to answer.
Thank you for your answer, I will test it an come back to you

 

[dotchieJack]

Works great, thank you Chihiro