Related Clues:

• Low bills
• Decimal units
• Rightmost column
• Column in a sum
• Adder's column
• Poker holding, perhaps
• Singletons
• They share keys with exclamation points
• Halves of a 32-Across
• Knockouts, so to speak
• Wallet bills
• Money clip fill
• Poor man's wad
• Single digits?
• Bankroll makeup