At the arcade Dave had won 19 tickets. If he used 12 to buy some toys and 7 more to buy some clothes how many more tickets did Dave use to buy toys than he did to buy clothes?
:

1) Dave won 19 tickets.
2) He used 12 tickets to buy toys.
3) He used 7 tickets to buy clothes.

So we can see that Dave used 3 more tickets to buy toys than he did to buy clothes.