What does n-1 mean in math?

This is simply a way to count a number without including the number itself. For example, 6-1 is equal to 5. The symbol – (hyphen) is the subtraction operator. Using the 6-1 example, subtracting 6 from any number will give you its predecessor. So, subtracting 6 from 7 will give you the answer of 1.

What does 5-mean in math?

We can express any number in a simpler form by removing one of the highest-value digits. For example, 27 can be represented by writing 27 as 2-1-7. The “n-1” refers to the number of digits we’ve removed. So if we’re removing the 1, the number of digits left is represented by “n-1.” This is also the number of unique digits in the number we’re reducing to.

What does -mean in math?

It's easy to forget that we have two kinds of subtraction: the regular kind that's used in middle school and high school, and the kind that's used in algebra and geometry. There are only four operations, and they work differently: subtraction, addition, division, and multiplication.

What does 7-mean in math?

The expression 7-1 is equal to 6. In other words, the result of subtracting one from 7 is 6. If you subtract two from a number, you get the result of that number minus the original number. For example, 6-2 is equal to 4. The expression 7-1 is equal to 6 because the number 7 minus one is equal to the number 6.

What does n minus mean?

n minus is the sum of all numbers between 1 and n except the number itself. The result is always a positive number. So, 6 minus 2 equals 4. This number is represented by the symbol n-1.