Maths | Multiplacation

I completed a task based on multiplacation.

First I took a big group of an unknown amount of counters.

After I split the big group of counters into small groups of 9.

Next I counted the number of groups.

Then I used multiplication to figure out the unknown amount of counters which is 18.

Next I repeated the same thing for the other two sets of unkown numbers.

I like multiplacation it's a faster way of adding numbers.