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Decimals - Grade 4




 
Videos and resources suitable for Grade 4 math.

In these lessons, we will learn how to represent decimals, how to use the decimal notation for fractions with denominators 10 or 100 and how to convert between fractions and decimals.

Related Topics:
Fractions for Grade 4

More Grade 4 Math Lessons

Decimal Worksheets

Decimal Games

Understanding Decimals

In everyday life, we often have measures that are less than one. We can use fractions to represent numbers less than one. Another way to represent numbers less than one would be to use decimals. We will learn that decimals allow for calculations that are consistent with whole number calculations.

We can represent decimals using the area model (base ten blocks/materials and/or decimal grids).

decimal grids

Representing Fractions and Decimals Using Base-10 Blocks (Tenths and Hundredths)
Using Base 10 Blocks to Represent Decimals



We can represent decimals on the number line.

Number Line (Tenths) decimals tenths

Number Line (Hundredths)
decimals hundredths

Decimals on a Number Line (tenths).
Tenths & Hundredths on a Number Line.


 

Fractions and Decimals

Standard 4.NF.6: Use decimal notation for fractions with denominators 10 or 100.
For example, rewrite 0.62 as 62/100; describe a length as 0.62 meters; locate 0.62 on a number line diagram.

Use decimal notation for fractions with denominators 10 or 100--Lesson 1 of 4 (Common Core 4.NF.6)
In this lesson you will learn how to convert decimals to fractions to the tenths place by using number lines.
Use decimal notation for fractions with denominators 10 or 100--Lesson 2 of 4
In this lesson you will learn how to convert decimals to fractions to the hundredths place by using visual aids.


Use decimal notation for fractions with denominators 10 or 100--Lesson 3 of 4
In this lesson you will learn how to convert fractions to decimals to the tenths place by using visual aids and division.
Use decimal notation for fractions with denominators 10 or 100--Lesson 4 of 4
In this lesson you will learn how to convert fractions to decimals to the hundredths place by using visual aids and division.


 
Convert fractions into decimals to the tenths place
Convert fractions into decimals to the hundredths place


Which fraction is equivalent to 0.08?
Understand when mixed numbers and decimals are equivalent
In this lesson, you will compare mixed numbers and decimals on a number line.


 

Rotate to landscape screen format on a mobile phone or small tablet to use the Mathway widget, a free math problem solver that answers your questions with step-by-step explanations.


You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.


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