Compare the time on Andy's watch with the time on the school clock shown in the figure.<br><br>
&bull; Read the time on the school clock (the correct time).<br>
&bull; Read the time on Andy's watch.<br>
&bull; Subtract: school clock time &minus; Andy's watch time = 35 minutes.<br>
&bull; Andy's watch is running 35 minutes slower than the school clock.<br><br>
Final Answer: 35