Bonanza Bingo

Scratch the FLASHBOARD to reveal 48 Bingo numbers. Gently scratch all bingo numbers on CARDs 1 through 4 that match the numbers on the FLASHBOARD. The bingo numbers on CARDs 1 through 4 should turn dark blue. You may also use a pen to mark the numbers.
HOW TO WIN
Match 18 or more numbers on any one CARD (not including the FREE space) to the numbers on the FLASHBOARD, and win the prize shown on the prize legend. Note: A ticket can win only 1 prize on each CARD, but a prize can be won on up to 4 CARDs provided that each CARD has a winning pattern.
PRIZE LEGEND
On any 1 CARD match the FLASHBOARD numbers (not including the FREE space).
18 matches + free space $2
19 matches + free space $4
20 matches + free space $8
21 matches + free space $24
22 matches + free space $40
23 matches + free space $100
24 matches + free space $20,000