Question

what are tally marks in maths​

Answer 1

Answer:

Tally marks are a quick way of keeping track of numbers in groups of five. One vertical line is made for each of the first four numbers; the fifth number is represented by a diagonal line across the previous four.

Answer 2

it is a form of representation of data also called frequency distribution table where I such lines are tally marks and together only 5 tally marks make group