A new primary school needs to add two new books to the library, and buy 3 sets of each. One of them is 125 yuan per set, and the other is 18 yuan per set. How much will it cost in total?
新建小学要为图书馆增添两种新书，每种买3套．其中一种每套125元，另一种每套18元．一共要花多少钱？
<gadget id="calculator">125 + 18</gadget>
<output>143</output>

<gadget id="calculator">143 * 3</gadget>
<output>429</output>

<result>429</result>