Need help slove problem PLEASE

[abb_math14]

Balance 6 dice one, on top of the other so that each die shows 2 dots on top. In the whole stack of dice what is the total number of dots that you're unable to see?

 

[Romsek]

opposite faces add to 7
you can't see the top or bottom of the first 5 dice, and you can't see the bottom of the 6th
you know the tops and bottoms are 2 and 5

you should be able to figure it out now

 

[abb_math14]

I got it thank you

 

[abb_math14]

opposite faces add to 7
you can't see the top or bottom of the first 5 dice, and you can't see the bottom of the 6th
you know the tops and bottoms are 2 and 5

you should be able to figure it out now

Thank you