A cafe has 9 indoor tables and 11 outdoor tables. Each indoor table has 10 chairs, and each outdoor table has 3 chairs. How many chairs are there in all?
There are 9 indoor tables * 10 chairs = 
<gadget id="calculator">9*10</gadget>
<output>90</output>
90 chairs.
There are 11 outdoor tables * 3 chairs = 
<gadget id="calculator">11*3</gadget>
<output>33</output>
33 chairs.
The total number of chairs is 90 chairs + 33 chairs = 
<gadget id="calculator">90+33</gadget>
<output>123</output>
123 chairs.

<result>123</result>