5 squirrels collected 575 acorns. If each squirrel needs 130 acorns to get through the winter, how many more acorns does each squirrel need to collect?
Step-by-step reasoning:
15
Each squirrel now has 575 / 5 = 115 acorns.

Each squirrel still needs to collect another 130 - 115 = 15 acorns.

.

The answer: 15