There are many chickens and rabbits in a cage. Xiao Ming counts them. The sum of the number of chickens and rabbits is 44. The number of feet of chickens and the number of rabbits is 100. How many chickens are there in the cage? ?
一个笼子里关着许多只鸡和兔，小明数了一下，鸡的头数与兔的头数的和为44，其中鸡的脚数和兔的脚数共100，那么笼子里有几只鸡？
<gadget id="calculator">44 * 2</gadget>
<output>88</output>

<gadget id="calculator">100 - 88</gadget>
<output>12</output>

<gadget id="calculator">4 - 2</gadget>
<output>2</output>

<gadget id="calculator">12 / 2</gadget>
<output>6</output>

<gadget id="calculator">44 - 6</gadget>
<output>38</output>

<result>38</result>