Count by 138 (Skip Counting by 138s)

Count by 138

Here we will show you how to count by 138, discuss counting by 138 patterns, and tell you why knowing how to count by 138 matters. To start off, note that Count by 138 means counting in 138s, or count by one hundred thirty-eights, and it is also called skip counting by 138.

How to count by 138
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 138, we count 138, 276, 414, 552, and so on.

In other words, to count in intervals of 138 or skip counting by 138, we start with 138 and then add 138 to get the next number, and then continue adding 138 to the previous number to keep counting by 138, like this:

138
138 + 138 = 276
276 + 138 = 414
414 + 138 = 552
552 + 138 = 690
...

You can of course skip count by 138 forever, so it is impossible to make a list of all numbers, but below is a Count by 138 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 138, the second column has the next ten numbers you get when you skip count by 138, and so forth.

Count by 138 Patterns
We organized the Skip Counting by 138s 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 138, but don't have the Counting by 138s Chart above. Obviously, one pattern with counting by 138s is that the number increases by 138.

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 138 goes 8, 6, 4, 2, 0 and 8, 6, 4, 2, 0 and so on for as long as you count by 138.

Why Count by 138?
We think that understanding and learning about skip counting by 138 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by one hundred thirty-eight, you are also creating a list of multiples of 138 that you can use in math when you need the least common multiple. 138 times n equals the nth multiple or skip count of 138.

When you skip count by 138, you are also creating a list of numbers that 138 is divisible by. On top of that, skip counting by 138 is the same as making the 138 times table.

Skip Counting
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Count by 139
Here is the next number on our list that we used to skip count.