A wildlife team is monitoring the number of birds in a park. There are 3 blackbirds in each of the park’s 7 trees. There are also 13 magpies roaming around the park. How many birds are in the park in total?
In the trees, there are 7 trees * 3 blackbirds per tree = 
<gadget id="calculator">7*3</gadget>
<output>21</output>
21 blackbirds.
In addition to the magpies, there is a total of 21 blackbirds + 13 magpies = 
<gadget id="calculator">21+13</gadget>
<output>34</output>
34 birds in the park.

<result>34</result>