1. **State the problem:** We are given prices per kilogram of different fruits and vegetables and asked to perform addition or subtraction of decimals. 2. **Given prices:** - Watermelon = 70.25 - Cucumber = 64.75 - Carrot = 95.50 - Eggplant = 93.75 - Banana = 105.85 3. **Example calculation:** Add Eggplant price and Carrot price: $$93.75 + 95.50$$ 4. **Align numbers by decimal points:** $$\begin{array}{r} 93.75\\ + 95.50\\ \hline \end{array}$$ 5. **Add decimals starting from rightmost place:** - Hundredths place: 5 + 0 = 5 - Tenths place: 7 + 5 = 12, write 2 carry 1 - Units place: 3 + 5 + 1 (carry) = 9 - Tens place: 9 + 9 = 18 6. **Summation:** $$93.75 + 95.50 = 189.25$$ 7. **Explanation:** When adding decimals, align the decimal points to ensure place values correspond correctly. Add digit by digit from right to left, carrying over as needed. **Final answer: $189.25$**