How much is it to reduce the product of the largest one-digit number and the smallest two-digit number by 10 times?
把最大的一位数与最小的两位数的积缩小10倍是多少．
<gadget id="calculator">10 / 10</gadget>
<output>1</output>

<gadget id="calculator">9 * 1</gadget>
<output>9</output>

<result>9</result>