Thursday, April 18, 2024

What Is Expanded Notation In Math

Don't Miss

How To Do Expanded Notation

Expanded Notation of A Number | Mathematics Grade 4 | Periwinkle

These methods of writing a number in expanded notation and forms are illustrated in the examples below.

Example 1

Write 4,981 in expanded form?


The number 4,981 can be written in expanded form as:

4,981 = 4,000 + 900 + 80 + 1In this method, every number that comes after a digit is replaced with zeros. For instance, 4 and 9 in the number are represented as 4000 and 900 respectively.

Example 2

Write 15,807 in expanded form?


15,807 in expanded form is represented as:

15,807 = 10,000 + 5,000 + 800 + 7In this example, the place value of 0 in the number is zero therefore, the value in the tens digit is not represented because there are no tens.

Writing a number in expanded notation entails showing the place of a number in exponential powers of ten.

Example 3

Write the expanded notation of: 4,981


4,981 = + + +

= + + +

Example 4

Write 15,807 in expanded notation?


15,807 = + + +

= + + +

Example 5

Write the thousands, hundreds, tens and ones for each of the following numbers:

a. 945

945 = 9 hundreds + 4 tens + 7 ones

= 900 + 40 + 5

458= 4 hundreds + 5 tens + 8 ones

= 400 + 50 + 8

5973 = 5 thousands + 9 hundreds + 7 tens + 3 ones

= 5000 + 900 + 70 + 3

333 = 3 hundreds + 3 tens + 3 ones

= 300 + 30 + 3

789 = 7 hundreds + 8 tens + 9 ones

= 700 + 80 + 9

Example 5

Write 96. 24 in expanded notation?


96.24 = 90 + 6 + 0.2 + 0.04 + + +

Example 6

Write the decimal number 536.072 in expanded notation.


What About Numbers Where One Of The Digits Is A Zero

Lets look at an example where one of the digits is a zero, for example 7204.

To start with, lets take a quick look at the place value columns to see where each digit sits.

We have 7 in the thousands column, a 2 in the hundreds column, a 0 in the tens column, and a 4 in the ones column.

If we expand 7204, it would look like this:

The value of the 7 in the thousands column is 7000 , the value of the 2 in the hundreds column is 200 , the value of the 4 in the ones column is 4 .

As you can see, we dont need to include a value for the tens digit in the expanded form, because the tens digit was 0 , so it has no value.

Even though we dont show the value of the 0 in expanded form, in standard form the 0 is crucial because it is a place holder. If we took the 0 out of 7204 in standard form, it would become 724 and a different number entirely.

Related post: What is a place value chart?

Expanded Form Vs Expanded Notation

You may also come across a term called expanded notation.

Although similar, there is a slight difference between expanded form and expanded notation.

As weve seen, with expanded form, a number is shown as the sum of the value of each of its digits:

With expanded notation, a number is instead shown as the sum of each digit multiplied by its place value :

Essentially, expanded notation shows the math calculations we make in order to reach expanded form.

Recommended Reading: Molecular Shape For Ccl4

What Is Expanded Notation

Children are encouraged to use arrow cards in Key Stage 1 to help them understand that two-digit numbers are made up of tens and ones.

This is also referred to as understanding place value. This is the foundation to then being able to understand how to add and multiply two-digit numbers using expanded methods.

How To Write In Expanded Number Form

Expanded Notation

You can write numbers using the expanded form in various ways. Here we are going to explain all multiple ways to write the number in expanded form from the standard form. First, have a look at the below ways that you can use to convert a number in an expanded form.

  • Expanded Notation Form
  • Expanded Exponential Form
  • Word Form
  • In Expanded Notation form, will break out each digit and multiplied by its place value, so that the sum of all of the values equals the original number.

    In Expanded Fraction Form, will take the given number as every single digit and multiplies with their digits place values and then form a mathematical expression that results in the same number.

    In Expanded Exponential Form, will do the same process but instead of multiplying with place values like 100, 10, 1. You need to use the exponent form of individual place values like 10², 101, 100.

    A word from is writing the numerical/number as you would say it in words. For example, the number 456 in word form is four thousand five hundred and six.

    Below, we have compiled a detailed stepwise explanation for the expanded form and word form notation. So, let’s view it more in a closer look by referring to the further section.


    Write the number 3452 in an expanded form and word form?


    Here the given number is 3452 and now convert it into expanded notation, and other forms too.

    Expanded Notation:

    Expanded Fraction Form:

    3 Thousands = 3 x 1000 = 3000

    4 Hundreds = 4 x 100 = 400

    5 Tens = 5 x 10 = 50

    Don’t Miss: What Does The Denominator Tell You

    What Is Standard Form In Math

    Answer: Standard form meaning is maths is defined as representation or notation of that particular element. It depends on the subject whether it is numbers, an equation or a line. Explanation: The standard form of a straight line is Ax + By = C. The standard form of a quadratic equation is ax2 + bx + c.

    Expanded Form And Standard Form

    Expanded form is a term that crops up when we are looking at the math topic of place value.

    Youll often see questions that ask you to write a number in expanded form. Or, perhaps to convert a number written in expanded form back into its standard form.

    Standard form refers to numbers in the form that were accustomed to seeing them, such as 356, 34 or 4.67.

    When we write a number in expanded form, we are essentially stretching that number out to show the value of each of its digits.

    Lets look at some examples.

    You May Like: Accepted Value Chemistry

    Using The Expanded Form Calculator

    The rules governing the expanded form calculator are straightforward. You just need to follow these three steps:

  • Input the number you’d like to have in expanded notation into the “Number” field.
  • Choose the form you’d like to have: numbers, factors, or exponents by selecting the right word in “Show the answer in … form.
  • Enjoy the result given to you underneath.
  • Easy, isn’t it? Also, note how for convenience, the expanded form calculator lists consecutive summands row by row and doesn’t mention the terms that correspond to the digits0 .

    And that’s that. We’ve learned the expanded form definition and how to use it. It’s a good starting point for learning more about numbers and how we represent them, so be sure to check out Omni’s arithmetic calculators section for more awesome tools.

    What Is The Meaning Of Expanded Form

    Expanded Notation | Mathematics Grade 3 | Periwinkle

    The way the whole numbers are formed well defines the number. The value of each digit in mathematics can be written in expanded form. Showing the number as a sum of each digit multiplied by its place value is the expanded form of a number. Let us look at the example of expanded form 1,278 = 1,000 + 200 + 70 + 8.

    Recommended Reading: How Old Is Elton Johns Kids

    Why Is Expanded Form Useful

    When youre learning about place value and working with large numbers, expanded form is really helpful. To be able to write a number in expanded form, you have to really understand how the place value system works and know what the value of each digit in a number is.

    Once youre able to partition a number into its different place value components, you can use this to help you with other calculations.

    For example, lets take addition. Say you needed to calculate 48 + 33 in your head.

    If you can break each number down into its tens and ones , it makes the calculation much easier:

    You would add up the ones , add up the tens , and then total those two numbers for your answer .

    How To Multiply Using Expanded Form

    For the multiplication of expanded form, we need to first write the numbers in the expanded form and then multiply each of the constituents and then add back the numbers. Let us understand this with the help of the product of two numbers. 423 × 12 = × = 400 × 10 + 20 × 10 + 3 × 10 + 400 × 2 + 20 × 2 + 3 × 2 = 4000 + 200 + 30 + 800 + 40 + 6 = 4000 + + + 6 = 4000 + 1000 + 70 + 6 = 5000 + 70 + 6 = 5076.

    Read Also: Common Core Worksheets 2nd Grade

    How To Use Our Free Online Expanded Form And Word Form Calculator

    Remember to follow these simple steps while using the expanded form and word form calculator and make your calculations even easier and faster. The steps are as follows:

    • First, simply type the input value in the filed provided in the calculator.
    • Next, click on the Arrow button, or Enter button to get the result.
    • At last, it will provide the expanded notation for the required number along with detailed steps in a fraction of seconds.

    How To Write Numbers In Expanded Form

    Expanded form/Expanded notation

    Let’s take a number that has the form a…aaaaa, i.e., the a-s denote consecutive digits of the number with a being the ones digit, a the tens digit, and so on. According to the expanded form definition from the previous section, we’d like to write:

    a…aaaaa = b + … + b + b + b + b + b,

    with the number bcorresponding somehow toa.

    Let’s explain how to write such numbers in expanded form starting from the right side, i.e., from a. Since it is the ones’ digit, it must appear at the end of our number. We create b by writing as many zeros to the right ofaas we have digits aftera in our number. In other words, we add none and get b = a.

    Next, we have the tens digit a. Again, we form b by putting as many zeros to the right ofaas we have digits followinga in the original number. In this case, there’s one such , so we have b = a0 . Similarly, to bwe’ll add two zeros , meaning that b = a00, and so on until b = a00…000 with n-1 zeros.

    Alright, we’ve seen how to write numbers in expanded form in a special case – when they’re integers. But what if we have ? Or if it’s some long-expression with several numbers before and after the dot? What is the expanded form of such a monstrosity?

    Well, let’s see, shall we?

    Read Also: Eoc Fsa Practice Test Algebra 2 Calculator Portion

    How To Write Decimals In Expanded Form

    Essentially, we do the same as in the above section. In short, we again add a suitable number of zeros to a digit but for those after the decimal dot, we write them to the left instead of to the right. Obviously, the dot must be placed at the right spot so that it all makes sense . So how do you write a number in expanded form when it has some fractional part?

    The framework from the first section doesn’t change: the expanded form with decimals should still give us a sum of the form:

    a…aaaaa.ccc…c = b + … + b + b + b + b + b + d + d + d + … + d,

    . Fortunately, we obtain b-s similarly as before we just have to remember to take the dot into account. To be precise, we add as many zeros as we have digits to the right, but before the decimal dot .

    On the other hand, we find d-s by putting as many zeros on the left side of c-s as we have digits between the decimal dot and the digit in question.

    For instance, to find d, we take c and add as many zeros as we have between the decimal dot andc . Then, we add the the very beginning, which gives d = 0.c. Similarly, we put one zero to the left of c , and obtain d = 0.0c. We repeat this for all d-s until d = 0.000…c, which has m-1 zeros after the decimal dot.

    Let’s have an expanded form example with the number 154.102:

    154.102 = 100 + 50 + 4 + 0.1 + 0.002.

    10¹ = 10, 10² = 100, 10³ = 1000, 10¹ = 0.1, 10² = 0.01, 10³ = 0.001.

    Write 5325 In Expanded Number Form

    Standard Form:

    5,000 + 300 + 20 + 5 = 5,325

    Expanded Factors Form: + + + = 5,325

    Expanded Exponential Form: + + + = 5,325

    Word Form:five thousand, three hundred twenty-five

    Note that in England and Great Britain the phrase “standard form” refers to the scientific number notation that the US calls “scientific notation.” Standard form in Great Britain and scientific notation in the US mean essentially the same thing when referring to the notation used to represent very large or very small numbers such as 4.959 × 1012 or 1.66 × 10-24.

    You May Like: Mcdougal Littell Geometry Chapter 7 Test Answers

    Expanded Form And Word Form Calculator

    Make use of our Expanded Form and Word Form Number Calculator by providing input number in the below input box and get the result in expanded notation, expanded fraction form, and expanded exponential form within a fraction of seconds after clicking on the calculate button.

    Expanded Form and Word Form Calculator:Having knowledge of mathematics concepts will make you strong in attempting all board & competitive examinations. To help you in mastering maths, our team at has come up with the math calculators for each and every single concept included in mathematics. Today from this page, you all are going to view and learn about the expanded notation of a number.

    Here, we have listed all the details about the expanded notation form and word form with definitions, types of expanded forms, how to write a number in expanded form along with a step by step guide. To make you feel comfortable, we have also provided the steps to use our online expanded form and word form calculator. Refer to the worked examples illustrated on this page on how to write integers in expanded form.

    Statistics And Other Decision Sciences

    Expanded Form | Expanded Notation | Math with Mr. J

    Applied mathematics has significant overlap with the discipline of statistics, whose theory is formulated mathematically, especially with probability theory. Statisticians “create data that makes sense” with random sampling and with randomized experiments the design of a statistical sample or experiment specifies the analysis of the data . When reconsidering data from experiments and samples or when analyzing data from observational studies, statisticians “make sense of the data” using the art of modelling and the theory of inferencewith model selection and estimation the estimated models and consequential predictions should be tested on new data.

    Statistical theory studies such as minimizing the risk of a statistical action, such as using a procedure in, for example, parameter estimation, hypothesis testing, and selecting the best. In these traditional areas of mathematical statistics, a statistical-decision problem is formulated by minimizing an objective function, like expected loss or cost, under specific constraints: For example, designing a survey often involves minimizing the cost of estimating a population mean with a given level of confidence. Because of its use of optimization, the mathematical theory of statistics shares concerns with other , such as operations research, control theory, and mathematical economics.

    Recommended Reading: Holt Mcdougal Geometry Chapter 7 Test Answers

    Writing Numbers In Expanded Form

    The expansion of a number is the separation of numbers based on place values. This is the intermediate step that helps us understand how the number has to be read. The expanded form helps us to know the place value of each digit within a number. Further, there are three different ways to write numbers in expanded form. The number 4537 can be written in one way of expanded form as 4531 = 4000 + 500 + 30 + 7, in the second way as 4531 = 4 × 1000 + 5 × 100 + 3 × 10 + 7 × 1, and in the third way as 4537 = 4 × thousands + 5 × hundreds + 3 × tens + 7 × ones.

    Expanded Form in Maths: Here are the below steps, which you can follow to write the expanded form:

    • Get the number in its standard form.
    • Determine its place values using the place value chart.
    • Multiply the number by its place value.
    • Show it as, digit × place value.
    • Represent all the digits as the product of the digit and its place value.

    Any number we get to read is decomposed. This process is called expanding the number. After decomposing in the expanded form we interpret the number in its standard form. The following points help us to understand more about expanded form.

    • Determine the place values of the digits for which the number is to be expanded.
    • We decompose the number while we are expanding. i.e. breaking it according to its place values. For example, 431 = 400 + 30 + 1
    • Expanded form in Maths helps us to understand how the number is formed using the place values.

    More articles

    Popular Articles