A table costs 64 yuan, and a chair costs 36 yuan. The company bought 30 sets of tables and chairs. How much does it cost in total?
一张桌子是64元，一把椅子是36元，公司买了30套桌椅，一共要花多少钱？
<gadget id="calculator">64 + 36</gadget>
<output>100</output>

<gadget id="calculator">100 * 30</gadget>
<output>3_000</output>

<result>3_000</result>