There are 120 boys in grade six, and girls are 10% less than boys. How many students are there in grade six?
六年级有男生120人，女生比男生少10%，六年级共有学生多少人？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">120 * (9/10)</gadget>
<output>108</output>

<gadget id="calculator">108 + 120</gadget>
<output>228</output>

<result>228</result>