John gets $30 from his grandpa and 3 times that much from his grandma.  How much did he get from the two grandparents?
His grandma gave 30*3=$
<gadget id="calculator">30*3</gadget>
<output>90</output>
90.
So he got a total of 30+90=$
<gadget id="calculator">30+90</gadget>
<output>120</output>
120.

<result>120</result>