Help with the tunnel under the thunder plains

[TidusReborn]

I can't get threw wall door thing #10(the second one you have to open) under the thunder plains. I keep entering the sum of wall 3 and wall 10 but it never opens. Any help?

[Formalhaut]

All you need is:

a pen
a notepad
a calculator

Walla

[BG-57]

Are you adding the white numbers in the corners of the screen together or the yellow ones?

[remnant1]

i have the ultimate tactic for you:no encounters!

this way when a door asks for the # of fights youve been in,its 0!
if it asks you how much gil youve obtained while in the dungeon,its0!
and like the other dude said,get a pen a and note pad,youll need it.

my sister did all the recording for me.it took up the entore front and back of a standard sheet of paper

[Little Blue]

All you need is:

a pen
a notepad
a calculator

Walla

Yup, definitely take notes while doing it.

i have the ultimate tactic for you:no encounters!

this way when a door asks for the # of fights youve been in,its 0!
if it asks you how much gil youve obtained while in the dungeon,its0!
and like the other dude said,get a pen a and note pad,youll need it.

Again, yup. The charm bracelet is also definitely a must.

[Formalhaut]

A calculator is optinal, if you are bad at maths like me () Then its a good thing to have.