John eats 3 meals a day.  Breakfast is 500 calories.  His lunch contains 25% more calories than that.  His dinner is twice as many calories as lunch.  He also has 3 shakes that are each 300 calories.  How many calories does he get in a day?
Lunch is 500 * .25 = 
<gadget id="calculator">500*.25</gadget>
<output>125</output>
125 more calories than breakfast.
That means it is 500 + 125 = 
<gadget id="calculator">500+125</gadget>
<output>625</output>
625 calories.
So dinner is 625 * 2 = 
<gadget id="calculator">625*2</gadget>
<output>1_250</output>
1250 calories.
The shakes are 3 * 300 = 
<gadget id="calculator">3*300</gadget>
<output>900</output>
900 calories.
So in total he eats 500 + 625 + 1250 + 900 = 
<gadget id="calculator">500+625+1250+900</gadget>
<output>3_275</output>
3275 calories.

<result>3_275</result>