Count by 400 (Skip Counting by 400s)

Count by 400

Here we will show you how to count by 400, discuss counting by 400 patterns, and tell you why knowing how to count by 400 matters. To start off, note that Count by 400 means counting in 400s, or count by four hundreds, and it is also called skip counting by 400.

How to count by 400
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 400, we count 400, 800, 1200, 1600, and so on.

In other words, to count in intervals of 400 or skip counting by 400, we start with 400 and then add 400 to get the next number, and then continue adding 400 to the previous number to keep counting by 400, like this:

400
400 + 400 = 800
800 + 400 = 1200
1200 + 400 = 1600
1600 + 400 = 2000
...

You can of course skip count by 400 forever, so it is impossible to make a list of all numbers, but below is a Count by 400 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 400, the second column has the next ten numbers you get when you skip count by 400, and so forth.

Count by 400 Patterns
We organized the Skip Counting by 400s 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 400, but don't have the Counting by 400s Chart above. Obviously, one pattern with counting by 400s is that the number increases by 400.

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 1 over and over. The pattern of the last digit when you count by 400 goes 0 and 0 and so on for as long as you count by 400.

Why Count by 400?
We think that understanding and learning about skip counting by 400 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by four hundred, you are also creating a list of multiples of 400 that you can use in math when you need the least common multiple. 400 times n equals the nth multiple or skip count of 400.

When you skip count by 400, you are also creating a list of numbers that 400 is divisible by. On top of that, skip counting by 400 is the same as making the 400 times table.

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

Count by 401
Here is the next number on our list that we used to skip count.