Calculation: 15.37*7.88+9.37*7.88+15.37*2.12+9.37*2.12.
计算：15.37*7.88+9.37*7.88+15.37*2.12+9.37*2.12．
<gadget id="calculator">15.37 * 7.88</gadget>
<output>121.1156</output>

<gadget id="calculator">9.37 * 7.88</gadget>
<output>73.8356</output>

<gadget id="calculator">15.37 * 2.12</gadget>
<output>32.5844</output>

<gadget id="calculator">9.37 * 2.12</gadget>
<output>19.8644</output>

<gadget id="calculator">121.1156 + 73.8356 + 32.5844 + 19.8644</gadget>
<output>247.4</output>

<result>247.4</result>