The school is going to distribute exercise books to 12 classes, each class has 122 copies, and 36 copies need to be kept as spares. How many exercise books should schools buy?
学校准备发练习本，发给12个班，每班122本，还需要留36本作为备用．学校应买多少本练习本？
<gadget id="calculator">122 * 12</gadget>
<output>1_464</output>

<gadget id="calculator">1_464 + 36</gadget>
<output>1_500</output>

<result>1_500</result>