If Ruby is 2 centimeters shorter than Pablo.  Pablo is 70 centimeters taller than Charlene.  Janet is 62 centimeters tall and Charlene is twice that tall.  How tall is Ruby?
Charlene is 2 * 62 cm = 
<gadget id="calculator">2*62</gadget>
<output>124</output>
124 cm tall.
Pablo is 70 cm + 124 cm = 
<gadget id="calculator">70+124</gadget>
<output>194</output>
194 cm tall.
Ruby is 194 cm - 2 = 
<gadget id="calculator">194-2</gadget>
<output>192</output>
192 cm tall.

<result>192</result>