There are 3 bicycles, 4 tricycles and 7 unicycles in the garage at Zoe's house. Each bicycle has 2 wheels, each tricycle has 3 wheels and each unicycle has 1 wheel. How many wheels are there in all?
The number of bicycle wheels is 2 * 3 = 
<gadget id="calculator">2*3</gadget>
<output>6</output>
6.
The number of tricycle wheels is 3 * 4 = 
<gadget id="calculator">3*4</gadget>
<output>12</output>
12.
The number of unicycle wheels is 1 * 7 = 
<gadget id="calculator">1*7</gadget>
<output>7</output>
7.
The total number of wheels is 6 + 12 + 7 = 
<gadget id="calculator">6+12+7</gadget>
<output>25</output>
25.

<result>25</result>