Use group of numbers 6042: 6a0, 6a2, 6a4, 0a2, 0a4, 4a2. Replace "a" with every number from 0 to 9. You will get 60 tickets. Then also flip them, you will get extra 60 tickets Straight. You can pick combinations among them or play all 120 tickets to try and win $500.
Also, group 6,4,2 can be explored for Straight tickets and for Pairs.
As alternative, use group 2,4,3. You can make straight tickets and also pairs 24, 43, 23 plus their flipped versions 42, 43, 32. Play Front and Back.