Davida worked 35 hours on each of Weeks 1 and 2. She worked 48 hours each of Weeks 3 and 4. How many more hours did Davida work on Weeks 3 and 4 than on Weeks 1 and 2? Let's think first. Chain of thought:
Week 1 + Week 2 = 35 + 35 = 70 hours. Week 3 + Week 4 = 48 + 48 = 96 hours. Subtract Weeks 3 - 4 from Weeks 1 - 2 = 96 - 70 = 26.
Therefore, the answer is 26.