Count by 72 (Skip Counting by 72s)

Count by 72

Here we will show you how to count by 72, discuss counting by 72 patterns, and tell you why knowing how to count by 72 matters. To start off, note that Count by 72 means counting in 72s, or count by seventy-twos, and it is also called skip counting by 72.

How to count by 72
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 72, we count 72, 144, 216, 288, and so on.

In other words, to count in intervals of 72 or skip counting by 72, we start with 72 and then add 72 to get the next number, and then continue adding 72 to the previous number to keep counting by 72, like this:

72
72 + 72 = 144
144 + 72 = 216
216 + 72 = 288
288 + 72 = 360
...

You can of course skip count by 72 forever, so it is impossible to make a list of all numbers, but below is a Count by 72 Chart of the first 100 numbers to get you started.

Looking at the chart above, you will see that the first column has the first ten numbers you get when you skip count by 72, the second column has the next ten numbers you get when you skip count by 72, and so forth.

Count by 72 Patterns
We organized the Skip Counting by 72s Chart above in 10 rows and 10 columns so you can easily identify patterns.

Skip counting always creates patterns. Figuring out these patterns may help you if want to count by 72, but don't have the Counting by 72s Chart above. Obviously, one pattern with counting by 72s is that the number increases by 72.

Furthermore, if you look at each row above, each number in the row has the same last digit (ones place). That means that every tenth number has the same last digit.

If you look down the columns, you will see that the last digit (ones place) repeats itself in blocks of 5 over and over. The pattern of the last digit when you count by 72 goes 2, 4, 6, 8, 0 and 2, 4, 6, 8, 0 and so on for as long as you count by 72.

Why Count by 72?
We think that understanding and learning about skip counting by 72 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by seventy-two, you are also creating a list of multiples of 72 that you can use in math when you need the least common multiple. 72 times n equals the nth multiple or skip count of 72.

When you skip count by 72, you are also creating a list of numbers that 72 is divisible by. On top of that, skip counting by 72 is the same as making the 72 times table.

Skip Counting
Need to skip count by another number? Enter another number for us to skip count for you.

Count by 73
Here is the next number on our list that we used to skip count.