Count by 1001 (Skip Counting by 1001s)

Count by 1001

Here we will show you how to count by 1001, discuss counting by 1001 patterns, and tell you why knowing how to count by 1001 matters. To start off, note that Count by 1001 means counting in 1001s, or count by one thousand ones, and it is also called skip counting by 1001.

How to count by 1001
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 1001, we count 1001, 2002, 3003, 4004, and so on.

In other words, to count in intervals of 1001 or skip counting by 1001, we start with 1001 and then add 1001 to get the next number, and then continue adding 1001 to the previous number to keep counting by 1001, like this:

1001
1001 + 1001 = 2002
2002 + 1001 = 3003
3003 + 1001 = 4004
4004 + 1001 = 5005
...

You can of course skip count by 1001 forever, so it is impossible to make a list of all numbers, but below is a Count by 1001 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 1001, the second column has the next ten numbers you get when you skip count by 1001, and so forth.

Count by 1001 Patterns
We organized the Skip Counting by 1001s 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 1001, but don't have the Counting by 1001s Chart above. Obviously, one pattern with counting by 1001s is that the number increases by 1001.

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 1001 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 1001.

Why Count by 1001?
We think that understanding and learning about skip counting by 1001 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 thousand one, you are also creating a list of multiples of 1001 that you can use in math when you need the least common multiple. 1001 times n equals the nth multiple or skip count of 1001.

When you skip count by 1001, you are also creating a list of numbers that 1001 is divisible by. On top of that, skip counting by 1001 is the same as making the 1001 times table.

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

Count by 1002
Here is the next number on our list that we used to skip count.