Tally marks

Topic Notes

In this lesson, we will learn:

  • How to draw tally marks
  • How to count tally marks
  • How to use tally marks for survey results

Notes:

  • Tally marks were first used during the prehistoric age, about 30,000 years ago!
    • Each line (or “tally”) represents one
    • Every 5th tally is drawn diagonally across the last 4

Representing Numbers: Tally Marks

  • You count tally marks by skip counting by 5. You know that each group with a diagonal is 5.
    • 5, 10, 15, 20, 25, 30, 35, 40, 45, 50
    • Or you can count two tally groups as 10, and skip count by 10
    • Any left-over tally marks, you count separately and add on to your total

    Representing Numbers: Tally Marks