Count by 9904 (Skip Counting by 9904s)

Count by 9904

Here we will show you how to count by 9904, discuss counting by 9904 patterns, and tell you why knowing how to count by 9904 matters. To start off, note that Count by 9904 means counting in 9904s, or count by nine thousand nine hundred fours, and it is also called skip counting by 9904.

How to count by 9904
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 9904, we count 9904, 19808, 29712, 39616, and so on.

In other words, to count in intervals of 9904 or skip counting by 9904, we start with 9904 and then add 9904 to get the next number, and then continue adding 9904 to the previous number to keep counting by 9904, like this:

9904
9904 + 9904 = 19808
19808 + 9904 = 29712
29712 + 9904 = 39616
39616 + 9904 = 49520
...

You can of course skip count by 9904 forever, so it is impossible to make a list of all numbers, but below is a Count by 9904 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 9904, the second column has the next ten numbers you get when you skip count by 9904, and so forth.

Count by 9904 Patterns
We organized the Skip Counting by 9904s 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 9904, but don't have the Counting by 9904s Chart above. Obviously, one pattern with counting by 9904s is that the number increases by 9904.

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 5 over and over. The pattern of the last digit when you count by 9904 goes 4, 8, 2, 6, 0 and 4, 8, 2, 6, 0 and so on for as long as you count by 9904.

Why Count by 9904?
We think that understanding and learning about skip counting by 9904 is important, because it teaches you how the arithmetic operations fit together. Below are some examples of what we mean.

When you count by nine thousand nine hundred four, you are also creating a list of multiples of 9904 that you can use in math when you need the least common multiple. 9904 times n equals the nth multiple or skip count of 9904.

When you skip count by 9904, you are also creating a list of numbers that 9904 is divisible by. On top of that, skip counting by 9904 is the same as making the 9904 times table.

Skip Counting
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Count by 9905
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