If two natural numbers are divided, the quotient is 4 and the remainder is 3; the sum of the dividend, divisor, quotient and remainder is 100. So what is the dividend.
如果两个自然数相除，商是4，余数是3；被除数、除数、商、余数的和为100．那么被除数是多少．
<gadget id="calculator">100 - 3 - 4 - 3</gadget>
<output>90</output>

<gadget id="calculator">4 + 1</gadget>
<output>5</output>

<gadget id="calculator">90 / 5</gadget>
<output>18</output>

<gadget id="calculator">100 - 18 - 4 - 3</gadget>
<output>75</output>

<result>75</result>