How many ways can a 2 digit number be formed by using only the digits 5 9?

When we write a number with only one digit, that digit is in the ones place. The value of the number gives the number its name. The name of the number and the name of its digit is the same.


Two-Digit Numbers

For a two-digit number, the first digit occupies the Tens place and the second digit occupies the Ones place.

How many ways can a 2 digit number be formed by using only the digits 5 9?

Let's look at this number:

        32

  • The name of the number is Thirty-two.
  • The value of the number is also Thirty-two.
  • It has two digits: 3 and 2.
  • The digit 3 is in the Tens place and has a value of Thirty.
  • The digit 2 is in the Ones place and has a value of Two.
  • We can write the number mathematically in the following ways:

    32 = 30 + 2
    32 = 3 tens and 2 ones
    32 = 32 ones
    32 = thirty-two

How many ways can a 2 digit number be formed by using only the digits 5 9?

Three-Digit Numbers

For a three-digit number, the first digit occupies the Hundreds place, the second digit occupies the Tens place and the third digit occupies the Ones place.

When writing the number in words, the British system has the word 'and' before the tens place.

How many ways can a 2 digit number be formed by using only the digits 5 9?

Let's look at this number:

       112

  • The name of the number is One hundred and twelve or One hundred twelve.
  • The value of the number is also One hundred and twelve.
  • It has three digits - 1, 1 and 2.
  • The first digit 1 is in the Hundreds place and has a value of One hundred.
  • The second digit 1 is in the Tens place and has a value of Ten.
  • The digit 2 is in the Ones place and has a value of Two.

We can write the number mathematically in the following ways:

112 = 100 + 10 + 2
112 = 1 hundreds, 1 tens and 2 ones
112 = 11 tens and 2 ones
112 = 112 ones
112 = one hundred and twelve

Digits and Numbers

Watch the video to learn to read numbers from the digits and its place.

Math Test Questions

Here are some typical Math test questions relating to this topic.

  1. In the number 3,401 which digit is in the tens place?
  2. What is the value of the digit 2 in this number: 329
  3. 10,000 + 300 + 6 = ________

Click here for more Math questions on Place and Place Value (US system).

Click here for more Math questions on Place and Place Value (British system).

More Test Questions

Get full worksheets here: https://www.teacherspayteachers.com/Product/Digits-and-Place-Value-Numbers-Up-To-20000-5118118

How many 2 number combinations are there in the numbers 0 to 9?

This means there are 100 possible combinations of two numbers using digits 0 through 9 if a digit can be repeated.

How many ways can a 2 digit number be formed?

9 possible two-digit numbers can be formed.

How many 2 digit numbers can be formed using 12345?

So the number of 2 digit numbers that can be formed using 0, 1, 2,3,4,5 is 5x5 is 25.

How many different ways can one make a 5 digit number using digits 1 2 9 such that each digit a appears at most once B appears at most twice?

There are 60,480 ways to construct a 5-digit number where any of the digits repeat at most twice.