Count by 115 (Skip Counting by 115s)

Count by 115

Here we will show you how to count by 115, discuss counting by 115 patterns, and tell you why knowing how to count by 115 matters. To start off, note that Count by 115 means counting in 115s, or count by one hundred fifteens, and it is also called skip counting by 115.

How to count by 115
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 115, we count 115, 230, 345, 460, and so on.

In other words, to count in intervals of 115 or skip counting by 115, we start with 115 and then add 115 to get the next number, and then continue adding 115 to the previous number to keep counting by 115, like this:

115
115 + 115 = 230
230 + 115 = 345
345 + 115 = 460
460 + 115 = 575
...

You can of course skip count by 115 forever, so it is impossible to make a list of all numbers, but below is a Count by 115 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 115, the second column has the next ten numbers you get when you skip count by 115, and so forth.

Count by 115 Patterns
We organized the Skip Counting by 115s 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 115, but don't have the Counting by 115s Chart above. Obviously, one pattern with counting by 115s is that the number increases by 115.

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 2 over and over. The pattern of the last digit when you count by 115 goes 5, 0 and 5, 0 and so on for as long as you count by 115.

Why Count by 115?
We think that understanding and learning about skip counting by 115 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 fifteen, you are also creating a list of multiples of 115 that you can use in math when you need the least common multiple. 115 times n equals the nth multiple or skip count of 115.

When you skip count by 115, you are also creating a list of numbers that 115 is divisible by. On top of that, skip counting by 115 is the same as making the 115 times table.

Skip Counting
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Count by 116
Here is the next number on our list that we used to skip count.