# Times tables flashcards that skip the cards they already know > TimesOwl remembers Tuesday’s miss on 6 × 7. The next session can skip the easy cards. Paper cards work for a first look at 6 × 7. A hundred-card pile on Wednesday night is a shuffle of easy facts, while the six that still wobble get one pass. ## The pile gets worse as the deck grows Paper decks and most apps shuffle every card into the same pile. Easy facts take the minutes, and the hard ones get one pass, same as everything else, so they never catch up. Sorting cards into a got-it pile and a not-yet pile helps for a night. By Thursday the piles have been knocked over, a sibling used the table, or you were too tired at 9 p.m. to re-sort. ## Where paper still earns its keep If you like, use cards for the first exposure. Say 6 × 7 out loud a few times while the idea is new. After that, ongoing review belongs in something that already knows each fact’s history, so nobody is manually sorting stacks. ## What TimesOwl does about it TimesOwl remembers Tuesday’s miss on 6 × 7, including how fast the hits were. The next session can skip the easy cards. ## Related - [Spaced repetition for times tables](https://timesowl.com/spaced-repetition-times-tables.md?v=plain) - [Typing multiplication answers](https://timesowl.com/typing-practice.md?v=plain) - [Multiplication facts practice](https://timesowl.com/multiplication-facts.md?v=plain)