999(998/999)*999.
999(998/999)*999．
<gadget id="calculator">999 * 999</gadget>
<output>998_001</output>

<gadget id="calculator">998 / 999</gadget>
<output>998/999 = around 0.998999</output>

<gadget id="calculator">(998/999) * 999</gadget>
<output>998</output>

<gadget id="calculator">998_001 + 998</gadget>
<output>998_999</output>

<result>998_999</result>