Jerry is cutting up wood for his wood-burning stove. Each pine tree makes 80 logs, each maple tree makes 60 logs, and each walnut tree makes 100 logs. If Jerry cuts up 8 pine trees, 3 maple trees, and 4 walnut trees, how many logs does he get?
First find the total number of pine logs by multiplying the number of trees by the number of logs per tree: 80 logs/pine * 8 pines = 
<gadget id="calculator">80*8</gadget>
<output>640</output>
640 logs.
Then do the same thing for the maple trees: 60 logs/maple * 3 maples = 
<gadget id="calculator">60*3</gadget>
<output>180</output>
180 logs.
And do the same thing for the walnut trees: 100 logs/walnut * 4 walnuts = 
<gadget id="calculator">100*4</gadget>
<output>400</output>
400 logs.
Finally, add up the number of logs from each type of tree to find the total number: 640 logs + 180 logs + 400 logs = 
<gadget id="calculator">640+180+400</gadget>
<output>1_220</output>
1220 logs.

<result>1_220</result>