Xiaoyong's home is 630 meters away from the park. He left home at 8:19 and arrived at the park at 8:28. How many meters does Xiaoyong walk per minute?
小勇家离公园630米，他8：19从家出发，8：28到公园．小勇每分走多少米？
<gadget id="calculator">630 / 9</gadget>
<output>70</output>

<result>70</result>