The smallest bird in the world is the hummingbird. A sparrow weighs 1 gram more than 50 times that of a hummingbird. A sparrow weighs 106 grams, how many grams does a hummingbird weigh?
世界上最小的鸟是蜂鸟．一只麻雀的体重比蜂鸟的50倍多1克．一只麻雀重106克，一只蜂鸟的体重是多少克？
<gadget id="calculator">106 - 1</gadget>
<output>105</output>

<gadget id="calculator">105 / 50</gadget>
<output>21/10 = around 2.1</output>

<result>21/10 = around 2.1</result>