The school should add 5 sets of science and technology books and 5 sets of literature and art books to the library. Each set of science and technology books is 28 yuan, and each set of literature and art books is 22 yuan. How much does the school spend in total?
学校要为图书馆增添科技书和文艺书各5套．每套科技书28元，每套文艺书22元，学校一共要花多少元？
<gadget id="calculator">28 * 5</gadget>
<output>140</output>

<gadget id="calculator">22 * 5</gadget>
<output>110</output>

<gadget id="calculator">140 + 110</gadget>
<output>250</output>

<result>250</result>