<span>1 кг=1 000 г</span>
<span> кг= г</span>
<span>===================================================</span>
<span>1 ч=60 мин</span>
<span> ч= мин</span>
<span>===================================================</span>
<span>1 км=1 000 м</span>
<span> км= м</span>
<span>===================================================</span>
<span>1 м²=100 дм²</span>
<span> м²= дм²</span>