Xiao Ming's father deposits 10,000 yuan in the bank at an annual interest rate of 2.5%. The deposit period is three years, and 20% interest tax is paid according to the regulations when it matures. When it matures, Xiao Ming's father can get the after-tax principal and interest and how much yuan?
小明的爸爸把10000元按2.5%的年利率存入银行，存期三年，到期时按规定支付20%的利息税，问到期时，小明的爸爸可获得税后本息和多少元？
<gadget id="calculator">2.5 / 100</gadget>
<output>0.025</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">10_000 * 0.025 * 3 * (4/5)</gadget>
<output>600</output>

<gadget id="calculator">10_000 + 600</gadget>
<output>10_600</output>

<result>10_600</result>