# How many 10 digit combinations can 10 numbers make?

## How many 10 digit combinations can 10 numbers make?

10,000,000,000
If repetition is allowed, then the number of permutations of 10 digits is 10,000,000,000.

## How many combinations are possible with 10 digits?

Each 256 combinations from the 10k possible combinations with the 10 digits, is the results of the combination of 4 digits.

How do you make a ten frame?

To use a ten frame, begin with showing your child a blank ten frame. Add one counter and then count together. Add two counters and then count together. Continue adding counters until you reach ten.

### What is the number with 10 zeros?

Numbers Based on Groups of Three Zeros

Name Number of Zeros Groups of (3) Zeros
Septillion 24 8
Octillion 27 9
Nonillion 30 10
Decillion 33 11

### How many phone number combinations are possible?

Each area code has 792 prefixes or “NXX” codes. Each NXX has 10,000 possible numbers. Therefore, theoretically, there are 7,920,000 telephone numbers per area code.

How do you do a ten frame in math?

#### How do you calculate total number of combinations?

Combination Calculator. In finite mathematics a combination is most typically calculated using the formula C(n,r) = n!/r!(n-r)!. In this formula n represents the total number of items and r represents the number of items to choose. The formula is modified depending on the importance of item order and repeating items in the set of allowed results.

#### How to find the possible number of combinations?

Method 2 of 2: Calculating Combinations with Repetition Consider an example problem where order does not matter but repetition is allowed. In this kind of problem, you can use the same item more than once. Plug in your values for n {\\displaystyle n} and r {\\displaystyle r}. Solve the equation to find the number of combinations. You can do this either by hand or with a calculator.

What is the formula for the number of possible combinations?

The formula for combinations is generally n! / (r! (n — r)!), where n is the total number of possibilities to start and r is the number of selections made. In our example, we have 52 cards; therefore, n = 52.