Class 2 of the fifth grade bought 1 volleyball and 4 medicine balls. One volleyball is 18 yuan, and one medicine ball is 6 yuan. How much do you have to pay in total?
五年级2班买了1个排球和4个实心球．1个排球18元，1个实心球6元，一共要付多少元？
<gadget id="calculator">18 * 1</gadget>
<output>18</output>

<gadget id="calculator">6 * 4</gadget>
<output>24</output>

<gadget id="calculator">18 + 24</gadget>
<output>42</output>

<result>42</result>