If a number is divided by 7, the quotient is 12 and there is a remainder, what is the largest number.
一个数除以7，商是12，并且有余数，这个数最大是多少．
<gadget id="calculator">7 * 12</gadget>
<output>84</output>

<gadget id="calculator">7 - 1</gadget>
<output>6</output>

<gadget id="calculator">84 + 6</gadget>
<output>90</output>

<result>90</result>