Samir climbed 318 stairs yesterday. Veronica climbed 18 more than half that amount. How many stairs did Veronica and Samir climb together yesterday?
Half of 318 is 
<gadget id="calculator">318/2</gadget>
<output>159</output>
159
159 + 18 = 
<gadget id="calculator">159+18</gadget>
<output>177</output>
177 stairs
318 + 177 = 
<gadget id="calculator">318+177</gadget>
<output>495</output>
495.
Together they climbed 495 stairs yesterday.

<result>495</result>