Count by 331 (Skip Counting by 331s)

Count by 331

Here we will show you how to count by 331, discuss counting by 331 patterns, and tell you why knowing how to count by 331 matters. To start off, note that Count by 331 means counting in 331s, or count by three hundred thirty-ones, and it is also called skip counting by 331.

How to count by 331
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 331, we count 331, 662, 993, 1324, and so on.

In other words, to count in intervals of 331 or skip counting by 331, we start with 331 and then add 331 to get the next number, and then continue adding 331 to the previous number to keep counting by 331, like this:

331
331 + 331 = 662
662 + 331 = 993
993 + 331 = 1324
1324 + 331 = 1655
...

You can of course skip count by 331 forever, so it is impossible to make a list of all numbers, but below is a Count by 331 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 331, the second column has the next ten numbers you get when you skip count by 331, and so forth.

Count by 331 Patterns
We organized the Skip Counting by 331s 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 331, but don't have the Counting by 331s Chart above. Obviously, one pattern with counting by 331s is that the number increases by 331.

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 331 goes 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 and 1, 2, 3, 4, 5, 6, 7, 8, 9, 0 and so on for as long as you count by 331.

Why Count by 331?
We think that understanding and learning about skip counting by 331 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by three hundred thirty-one, you are also creating a list of multiples of 331 that you can use in math when you need the least common multiple. 331 times n equals the nth multiple or skip count of 331.

When you skip count by 331, you are also creating a list of numbers that 331 is divisible by. On top of that, skip counting by 331 is the same as making the 331 times table.

Skip Counting
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Count by 332
Here is the next number on our list that we used to skip count.