Respuesta :

so first you do 25-9=16 round that to 20 then 1/2=1 hole +10 so that would be ..

Step-by-step explanation:

25 - 9 1/2 + 11

= 36 - 9 1/2

= 36 - 9/2

= 36 - 4.5

= 31.5