Andy plants 90 geraniums and 40 fewer petunias that geraniums. How many flowers does he plant total?
First find the number of petunias Andy plants: 90 flowers - 40 = 
<gadget id="calculator">90-40</gadget>
<output>50</output>
50 flowers.
Then add the number of each kind of flower he plants to find the total number: 50 flowers + 90 flowers = 
<gadget id="calculator">50+90</gadget>
<output>140</output>
140 flowers.

<result>140</result>