The steelmaking plant makes 1550 tons of steel in the first 3 days of a week, and 554 tons of steel every day in the last 4 days. How many tons of steel are you making on average every day this week?
炼钢厂一星期中前3天共炼钢1550吨，后4天平均每天炼钢554吨．这个星期平均每天炼钢多少吨？
<gadget id="calculator">554 * 4</gadget>
<output>2_216</output>

<gadget id="calculator">2_216 + 1_550</gadget>
<output>3_766</output>

<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">3_766 / 7</gadget>
<output>538</output>

<result>538</result>