A ribbon is 4 meters long and can tie a flower every 5 decimeters. How many flowers can this ribbon tie?
一根彩带长4米，每5分米可以扎一朵花，这根彩带可以扎几朵花？
<gadget id="calculator">4 * 10</gadget>
<output>40</output>

<gadget id="calculator">40 / 5</gadget>
<output>8</output>

<result>8</result>