Count by 39 (Skip Counting by 39s)

Count by 39

Here we will show you how to count by 39, discuss counting by 39 patterns, and tell you why knowing how to count by 39 matters. To start off, note that Count by 39 means counting in 39s, or count by thirty-nines, and it is also called skip counting by 39.

How to count by 39
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 39, we count 39, 78, 117, 156, and so on.

In other words, to count in intervals of 39 or skip counting by 39, we start with 39 and then add 39 to get the next number, and then continue adding 39 to the previous number to keep counting by 39, like this:

39
39 + 39 = 78
78 + 39 = 117
117 + 39 = 156
156 + 39 = 195
...

You can of course skip count by 39 forever, so it is impossible to make a list of all numbers, but below is a Count by 39 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 39, the second column has the next ten numbers you get when you skip count by 39, and so forth.

Count by 39 Patterns
We organized the Skip Counting by 39s 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 39, but don't have the Counting by 39s Chart above. Obviously, one pattern with counting by 39s is that the number increases by 39.

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 10 over and over. The pattern of the last digit when you count by 39 goes 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 and 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 and so on for as long as you count by 39.

Why Count by 39?
We think that understanding and learning about skip counting by 39 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by thirty-nine, you are also creating a list of multiples of 39 that you can use in math when you need the least common multiple. 39 times n equals the nth multiple or skip count of 39.

When you skip count by 39, you are also creating a list of numbers that 39 is divisible by. On top of that, skip counting by 39 is the same as making the 39 times table.

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

Count by 40
Here is the next number on our list that we used to skip count.