Count by 1680 (Skip Counting by 1680s)

Count by 1680

Here we will show you how to count by 1680, discuss counting by 1680 patterns, and tell you why knowing how to count by 1680 matters. To start off, note that Count by 1680 means counting in 1680s, or count by one thousand six hundred eighties, and it is also called skip counting by 1680.

How to count by 1680
Normally, we would count by 1 like this: 1, 2, 3, 4, etc., but when we count by 1680, we count 1680, 3360, 5040, 6720, and so on.

In other words, to count in intervals of 1680 or skip counting by 1680, we start with 1680 and then add 1680 to get the next number, and then continue adding 1680 to the previous number to keep counting by 1680, like this:

1680
1680 + 1680 = 3360
3360 + 1680 = 5040
5040 + 1680 = 6720
6720 + 1680 = 8400
...

You can of course skip count by 1680 forever, so it is impossible to make a list of all numbers, but below is a Count by 1680 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 1680, the second column has the next ten numbers you get when you skip count by 1680, and so forth.

Count by 1680 Patterns
We organized the Skip Counting by 1680s 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 1680, but don't have the Counting by 1680s Chart above. Obviously, one pattern with counting by 1680s is that the number increases by 1680.

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 1680 goes 0 and 0 and so on for as long as you count by 1680.

Why Count by 1680?
We think that understanding and learning about skip counting by 1680 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 six hundred eighty, you are also creating a list of multiples of 1680 that you can use in math when you need the least common multiple. 1680 times n equals the nth multiple or skip count of 1680.

When you skip count by 1680, you are also creating a list of numbers that 1680 is divisible by. On top of that, skip counting by 1680 is the same as making the 1680 times table.

Skip Counting
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Count by 1681
Here is the next number on our list that we used to skip count.