A carpenter made ten tables for this month. Last month, he made three fewer tables than this month. How many tables did the carpenter make in total?
The carpenter made 10 - 3 = 
<gadget id="calculator">10-3</gadget>
<output>7</output>
7 tables last month.
So, the carpenter made 10 + 7 = 
<gadget id="calculator">10+7</gadget>
<output>17</output>
17 tables in all.

<result>17</result>