Clyde and Grace are building block towers. Grace’s tower is 8 times the size of Clyde’s at 40 inches tall. How many inches taller is Grace’s tower than Clyde’s?
Clyde's tower is 1/8 the size of Grace's tower or 40 inches / 8 = 
<gadget id="calculator">40/8</gadget>
<output>5</output>
5 inches tall.
Grace's tower is 40 inches - 5 inches = 
<gadget id="calculator">40-5</gadget>
<output>35</output>
35 inches taller than Clyde's.

<result>35</result>