Count by 85 (Skip Counting by 85s)

Count by 85

Here we will show you how to count by 85, discuss counting by 85 patterns, and tell you why knowing how to count by 85 matters. To start off, note that Count by 85 means counting in 85s, or count by eighty-fives, and it is also called skip counting by 85.

How to count by 85
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 85, we count 85, 170, 255, 340, and so on.

In other words, to count in intervals of 85 or skip counting by 85, we start with 85 and then add 85 to get the next number, and then continue adding 85 to the previous number to keep counting by 85, like this:

85
85 + 85 = 170
170 + 85 = 255
255 + 85 = 340
340 + 85 = 425
...

You can of course skip count by 85 forever, so it is impossible to make a list of all numbers, but below is a Count by 85 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 85, the second column has the next ten numbers you get when you skip count by 85, and so forth.

Count by 85 Patterns
We organized the Skip Counting by 85s 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 85, but don't have the Counting by 85s Chart above. Obviously, one pattern with counting by 85s is that the number increases by 85.

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 85 goes 5, 0 and 5, 0 and so on for as long as you count by 85.

Why Count by 85?
We think that understanding and learning about skip counting by 85 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by eighty-five, you are also creating a list of multiples of 85 that you can use in math when you need the least common multiple. 85 times n equals the nth multiple or skip count of 85.

When you skip count by 85, you are also creating a list of numbers that 85 is divisible by. On top of that, skip counting by 85 is the same as making the 85 times table.

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

Count by 86
Here is the next number on our list that we used to skip count.