Erin has 7 lollipops. Her mother gives Erin another 10 lollipops. If Erin gives 3 of her lollipops to Ella, how many lollipops does she have left?
Erin has 7 + 10 = 
<gadget id="calculator">7+10</gadget>
<output>17</output>
17 lollipops.
After she gives 3 lollipops to Ella she has 17 - 3 = 
<gadget id="calculator">17-3</gadget>
<output>14</output>
14 lollipops.

<result>14</result>