Xiaoming's father deposits 5,000 yuan in the bank for one year, with an annual interest rate of 2.25%. After deducting 20% interest tax, how much interest will Xiaoming's father actually get?
小明的爸爸在银行存入5000元一年期储蓄，年利率为2.25%，一年到期扣除20%利息税后，小明爸爸实得利息多少．
<gadget id="calculator">2.25 / 100</gadget>
<output>0.0225</output>

<gadget id="calculator">5_000 * 0.0225 * 1</gadget>
<output>112.5</output>

<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">112.5 * (4/5)</gadget>
<output>90</output>

<result>90</result>