The smallest bird in the world is the hummingbird. A hummingbird weighs 2.1 grams, and a sparrow weighs 1 gram more than 50 times that of a hummingbird. How many grams does a sparrow weigh?
世界上最小的鸟是蜂鸟．一只蜂鸟重2.1克，一只麻雀的体重比蜂鸟的50倍多1克．一只麻雀重多少克？
<gadget id="calculator">2.1 * 50</gadget>
<output>105</output>

<gadget id="calculator">105 + 1</gadget>
<output>106</output>

<result>106</result>