On an American flag, the first stripe is red and half of the remaining stripes are also red. Each flag has 13 stripes.  John buys 10 flags.  How many red stripes are there?
There are 13-1=
<gadget id="calculator">13-1</gadget>
<output>12</output>
12 stripes left.
So there are 12/2=
<gadget id="calculator">12/2</gadget>
<output>6</output>
6 red stripes.
So the total number of red stripes is 6+1=
<gadget id="calculator">6+1</gadget>
<output>7</output>
7 red stripes.
So he has a total of 7*10=
<gadget id="calculator">7*10</gadget>
<output>70</output>
70 red stripes.

<result>70</result>