100 grains of rice weigh about 4 grams. According to this calculation, how many grams does 100 million rice weigh?
100粒大米约重4克．照这样计算，1亿大米约重多少克．
<gadget id="calculator">100_000_000 / 100</gadget>
<output>1_000_000</output>

<gadget id="calculator">1_000_000 * 4</gadget>
<output>4_000_000</output>

<result>4_000_000</result>