Xianan Elementary School used 695.8 kWh of electricity in September, and saved 20.8 kWh in October compared to September. How much electricity is shared in two months?
下南小学九月份用电695.8度，十月份比九月份节约了20.8度，两个月共用电多少度？
<gadget id="calculator">695.8 - 20.8</gadget>
<output>675</output>

<gadget id="calculator">675 + 695.8</gadget>
<output>1_370.8</output>

<result>1_370.8</result>