Column calculation: the product of 43 times 51 minus 490, what is the difference?
列式计算：43乘51的积减去490，差是多少？
<gadget id="calculator">43 * 51</gadget>
<output>2_193</output>

<gadget id="calculator">2_193 - 490</gadget>
<output>1_703</output>

<result>1_703</result>