A box of candies weighs 630 grams, the box weighs 130 grams, and each piece of candy weighs 5 grams. How many pieces of candy are there in this box?
一盒糖连盒重630克，盒重130克，每块糖重5克，这盒糖有多少块？
<gadget id="calculator">630 - 130</gadget>
<output>500</output>

<gadget id="calculator">500 / 5</gadget>
<output>100</output>

<result>100</result>