Mr. Li deposits 4,000 yuan in the bank with an annual interest rate of 2.25%. How much can he get back after two years of deposit?
李老师把4000元存入银行，年利率是2.25%，存两年后可以取回多少元？
<gadget id="calculator">2.25 / 100</gadget>
<output>0.0225</output>

<gadget id="calculator">4_000 * 0.0225 * 2</gadget>
<output>180</output>

<gadget id="calculator">4_000 + 180</gadget>
<output>4_180</output>

<result>4_180</result>