The annual interest rate of a certain deposit in the bank is 4%. Mr. Li has deposited 10,000 yuan for 2 years. After the maturity, he can withdraw the principal and interest from the bank and how much it is. (excluding tax on interest)
银行中某种储蓄的年利率是4%，李老师10000元存了2年，到期后他可以从银行取出本息和为多少元．(不考虑利息税)
<gadget id="calculator">4 / 100</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">10_000 * (1/25) * 2</gadget>
<output>800</output>

<gadget id="calculator">800 + 10_000</gadget>
<output>10_800</output>

<result>10_800</result>