1. **State the problem:** Kari buys socks costing 4 and shoes costing 35, paying 40. We need to find her change. 2. **Write the formula:** Change = Amount given - Total cost 3. **Calculate total cost:** Total cost = 4 + 35 = 39 4. **Calculate change:** Change = 40 - 39 5. **Simplify:** Change = \cancel{40} - \cancel{39} = 1 6. **Answer:** Kari will get 1 as change.