Count by 231 (Skip Counting by 231s)

Count by 231

Here we will show you how to count by 231, discuss counting by 231 patterns, and tell you why knowing how to count by 231 matters. To start off, note that Count by 231 means counting in 231s, or count by two hundred thirty-ones, and it is also called skip counting by 231.

How to count by 231
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 231, we count 231, 462, 693, 924, and so on.

In other words, to count in intervals of 231 or skip counting by 231, we start with 231 and then add 231 to get the next number, and then continue adding 231 to the previous number to keep counting by 231, like this:

231
231 + 231 = 462
462 + 231 = 693
693 + 231 = 924
924 + 231 = 1155
...

You can of course skip count by 231 forever, so it is impossible to make a list of all numbers, but below is a Count by 231 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 231, the second column has the next ten numbers you get when you skip count by 231, and so forth.

Count by 231 Patterns
We organized the Skip Counting by 231s 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 231, but don't have the Counting by 231s Chart above. Obviously, one pattern with counting by 231s is that the number increases by 231.

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 231 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 231.

Why Count by 231?
We think that understanding and learning about skip counting by 231 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by two hundred thirty-one, you are also creating a list of multiples of 231 that you can use in math when you need the least common multiple. 231 times n equals the nth multiple or skip count of 231.

When you skip count by 231, you are also creating a list of numbers that 231 is divisible by. On top of that, skip counting by 231 is the same as making the 231 times table.

Skip Counting
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Count by 232
Here is the next number on our list that we used to skip count.