Taylor needs to save up $83 .
She already has $25 .
She needs ($83 - $25) = $58 more.
She can get $5 every time she walks her friend's dog.
1 walk = $5 . . . . . not enough
2 walks = $10 . . . not enough
3 walks = $15 . . . not enough
.
5 walks = $25 . . . not enough
.
.
10 walks = $50 . . . not enough
11 walks = $55 . . . almost, but not enough
12 walks = $60 . . . Enough ! with $2 left over.