In a germination experiment with 200 seeds, the germination rate is 98%, how many seeds did not germinate?
用200粒种子做发芽实验，发芽率是98%，有多少粒种子没有发芽？
<gadget id="calculator">98 / 100</gadget>
<output>49/50 = around 0.98</output>

<gadget id="calculator">1 - (49/50)</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">200 * (1/50)</gadget>
<output>4</output>

<result>4</result>