When two numbers are divided, the quotient is 3 and the remainder is 10. The sum of the dividend, divisor, quotient and remainder is 143. How much is the dividend greater than the divisor?
两数相除商3余10，被除数、除数、商与余数的和是143，则被除数比除数大多少．
<gadget id="calculator">143 - 10 - 3 - 10</gadget>
<output>120</output>

<gadget id="calculator">3 + 1</gadget>
<output>4</output>

<gadget id="calculator">120 / 4</gadget>
<output>30</output>

<gadget id="calculator">3 * 30</gadget>
<output>90</output>

<gadget id="calculator">10 - 30</gadget>
<output>-20</output>

<gadget id="calculator">90 + (-20)</gadget>
<output>70</output>

<result>70</result>