If Sally had $20 less, she would have $80. If Jolly has $20 more, she would have $70. How much money do Sally and Jolly have altogether?
Sally has $80 + $20 = $
<gadget id="calculator">80+20</gadget>
<output>100</output>
100.
While Jolly has $70 - $20 = $
<gadget id="calculator">70-20</gadget>
<output>50</output>
50.
Thus, Sally and Jolly have $100 + $50 = $
<gadget id="calculator">100+50</gadget>
<output>150</output>
150 altogether.

<result>150</result>