Express a Number

How to express a number in the expanded form?

Expressing a number according to the place value of its digits is called the expanded form of the number.


Place value chart

Ten thousand          Thousand              Hundreds              Tens             Ones

(T. Th.)                     (Th.)                     (H)                   (T)               (O)

(i) 4                            7                          2                     9                  8

(ii) 5                            9                         0                     4                  5

(iii) 8                           0                         0                     4                  5

(iv) 7                           0                         0                     0                  2


Explanation of the above place value chart to express a number:

Expanded form of the number 47298 is 40000 + 7000 + 200 + 90 + 8

When we read a number, we actually read the place value of each digit of the number.

Thus, the number 47298 is read as ‘forty seven thousand two hundred ninety eight’.

 

Expanded form of the number 59045 is 50000 + 9000 + 000 + 40 + 5

If zero occurs as a digit in a number, we remain silent in reading its place value.

The number 59045 is read as ‘fifty nine thousand forty five’.

 

Expanded form of the number 80045 is 80000 + 40 + 5

The number 80045 is read as ‘eighty thousand forty five.

 

Expanded form of the number 70002 is 70000 + 2

The number 70002 is read as ‘seventy thousand two’.


For example:

1. Write the greatest 4 digit number.

Solution:

The greatest digit is 9. So, the greatest 4 digit number is 9999.


2. Write the smallest 5 digit number.

Solution:

The smallest digit is 1. We write a zero for each of the other places. So, the smallest 5 digit number is 10000.


3. Express 40102 in the expanded form.

Solution:

The expanded form of 40102 is 40000 + 100 + 2.


4. Express 7 thousands + 3 tens in figures.

Solution:

7030


5. Write the smallest 3 digit number.

Solution:

The smallest digit is 1. We write a zero for each of the other places. So, the smallest 3 digit number is 100.





2nd Grade Math Practice

From Express a Number to HOME PAGE




Didn't find what you were looking for? Or want to know more information about Math Only Math. Use this Google Search to find what you need.



New! Comments

Have your say about what you just read! Leave me a comment in the box below. Ask a Question or Answer a Question.

Share this page: What’s this?

Recent Articles

  1. Estimating Sum and Difference | Reasonable Estimate | Procedure | Math

    May 22, 24 06:21 PM

    The procedure of estimating sum and difference are in the following examples. Example 1: Estimate the sum 5290 + 17986 by estimating the numbers to their nearest (i) hundreds (ii) thousands.

    Read More

  2. Round off to Nearest 1000 |Rounding Numbers to Nearest Thousand| Rules

    May 22, 24 06:14 PM

    Round off to Nearest 1000
    While rounding off to the nearest thousand, if the digit in the hundreds place is between 0 – 4 i.e., < 5, then the hundreds place is replaced by ‘0’. If the digit in the hundreds place is = to or > 5…

    Read More

  3. Round off to Nearest 100 | Rounding Numbers To Nearest Hundred | Rules

    May 22, 24 05:17 PM

    Round off to Nearest 100
    While rounding off to the nearest hundred, if the digit in the tens place is between 0 – 4 i.e. < 5, then the tens place is replaced by ‘0’. If the digit in the units place is equal to or >5, then the…

    Read More

  4. Round off to Nearest 10 |How To Round off to Nearest 10?|Rounding Rule

    May 22, 24 03:49 PM

    Rounding to the Nearest 10
    Round off to nearest 10 is discussed here. Rounding can be done for every place-value of number. To round off a number to the nearest tens, we round off to the nearest multiple of ten. A large number…

    Read More

  5. Rounding Numbers | How do you Round Numbers?|Nearest Hundred, Thousand

    May 22, 24 02:33 PM

    rounding off numbers
    Rounding numbers is required when we deal with large numbers, for example, suppose the population of a district is 5834237, it is difficult to remember the seven digits and their order

    Read More