Xiaomogu Primary School has 300 boys and 236 girls. There are 398 people who have checked their bodies, how many people have not checked their bodies?
小莫古小学有男生300人，女生236人．已经检查身体的有398人，没检查身体的有多少人？
<gadget id="calculator">300 + 236</gadget>
<output>536</output>

<gadget id="calculator">536 - 398</gadget>
<output>138</output>

<result>138</result>