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?
Week 1 + Week 2 = 35 + 35 = 
<gadget id="calculator">35+35</gadget>
<output>70</output>
70 hours.
Week 3 + Week 4 = 48 + 48 = 
<gadget id="calculator">48+48</gadget>
<output>96</output>
96 hours.
Subtract Weeks 3-4 from Weeks 1-2 = 96 - 70 = 
<gadget id="calculator">96-70</gadget>
<output>26</output>
26.

<result>26</result>