Sometimes you just need the basics and that's exactly what these are. These tally mark number flashcards show the numbers 1-20 followed by black tally marks that represent each number. EXAMPLE: The 5 card shows the number 5 and then under it there are 5 tally marks. These cards are great for students who are learning number recognition, sequencing, number representation, addition and even subtraction. Flashcards are great when used for test prep, in centers, workstations, games or as independent