Unit 3-Tally Marks Review

Tally marks are a way to count and keep track of numbers using lines. Each group of five tallies is represented by four vertical lines and one diagonal line across them.

You represent the number 5 with four vertical lines and one diagonal line crossing them.

Each tally mark represents one count or one item.

You count tally marks by grouping them in sets of five for easier counting.

10 tally marks represent the number 10.

In a group of 15, there are three groups of 5 tally marks and an additional 5 tally marks.

Tally marks are used to keep track of numbers in a simple and visual way.

True

You have 4 tally marks.

There are 3 groups of 5 tally marks and 2 extra tally marks.