The fruit wholesale station originally had 140 baskets of fruit, but 90 baskets were transported away, and some were brought in. Now the fruit wholesale station has 150 baskets of fruit, how many baskets of fruit have been brought in?
水果批发站原有140筐水果，运走了90筐，又运进一些后，现在水果批发站有水果150筐，又运进水果多少筐？
<gadget id="calculator">140 - 90</gadget>
<output>50</output>

<gadget id="calculator">150 - 50</gadget>
<output>100</output>

<result>100</result>