If there are four times as many red crayons as blue crayons in a box, and there are 3 blue crayons.  How many crayons total are in the box?
Red crayons: 4(3)=12.
Total crayons: 12+3=
<gadget id="calculator">12+3</gadget>
<output>15</output>
15 crayons.

<result>15</result>