Count by 9939 (Skip Counting by 9939s)

Count by 9939

Here we will show you how to count by 9939, discuss counting by 9939 patterns, and tell you why knowing how to count by 9939 matters. To start off, note that Count by 9939 means counting in 9939s, or count by nine thousand nine hundred thirty-nines, and it is also called skip counting by 9939.

How to count by 9939
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 9939, we count 9939, 19878, 29817, 39756, and so on.

In other words, to count in intervals of 9939 or skip counting by 9939, we start with 9939 and then add 9939 to get the next number, and then continue adding 9939 to the previous number to keep counting by 9939, like this:

9939
9939 + 9939 = 19878
19878 + 9939 = 29817
29817 + 9939 = 39756
39756 + 9939 = 49695
...

You can of course skip count by 9939 forever, so it is impossible to make a list of all numbers, but below is a Count by 9939 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 9939, the second column has the next ten numbers you get when you skip count by 9939, and so forth.

Count by 9939 Patterns
We organized the Skip Counting by 9939s 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 9939, but don't have the Counting by 9939s Chart above. Obviously, one pattern with counting by 9939s is that the number increases by 9939.

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 9939 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 9939.

Why Count by 9939?
We think that understanding and learning about skip counting by 9939 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by nine thousand nine hundred thirty-nine, you are also creating a list of multiples of 9939 that you can use in math when you need the least common multiple. 9939 times n equals the nth multiple or skip count of 9939.

When you skip count by 9939, you are also creating a list of numbers that 9939 is divisible by. On top of that, skip counting by 9939 is the same as making the 9939 times table.

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

Count by 9940
Here is the next number on our list that we used to skip count.