Question 464707
Katelynn has $285 already saved. The bike she likes starts at 475. It starts at, it's not exactly. However, we are looking for the least amount she needs to save. Therefore, we need to subtract what she has saved from the least amount she is trying to save or reach. 

least amount needed $475

        minus-saved $285

this equals $190.

Katelynn will need to save at least $190 to reach 475.00