Count by 7990 (Skip Counting by 7990s)

Count by 7990

Here we will show you how to count by 7990, discuss counting by 7990 patterns, and tell you why knowing how to count by 7990 matters. To start off, note that Count by 7990 means counting in 7990s, or count by seven thousand nine hundred nineties, and it is also called skip counting by 7990.

How to count by 7990
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 7990, we count 7990, 15980, 23970, 31960, and so on.

In other words, to count in intervals of 7990 or skip counting by 7990, we start with 7990 and then add 7990 to get the next number, and then continue adding 7990 to the previous number to keep counting by 7990, like this:

7990
7990 + 7990 = 15980
15980 + 7990 = 23970
23970 + 7990 = 31960
31960 + 7990 = 39950
...

You can of course skip count by 7990 forever, so it is impossible to make a list of all numbers, but below is a Count by 7990 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 7990, the second column has the next ten numbers you get when you skip count by 7990, and so forth.

Count by 7990 Patterns
We organized the Skip Counting by 7990s 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 7990, but don't have the Counting by 7990s Chart above. Obviously, one pattern with counting by 7990s is that the number increases by 7990.

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 7990 goes 0 and 0 and so on for as long as you count by 7990.

Why Count by 7990?
We think that understanding and learning about skip counting by 7990 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by seven thousand nine hundred ninety, you are also creating a list of multiples of 7990 that you can use in math when you need the least common multiple. 7990 times n equals the nth multiple or skip count of 7990.

When you skip count by 7990, you are also creating a list of numbers that 7990 is divisible by. On top of that, skip counting by 7990 is the same as making the 7990 times table.

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

Count by 7991
Here is the next number on our list that we used to skip count.