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Last updated on November 30th, 2024

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Cube Root of 243

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The cube root of 243 is the value that, when multiplied by itself three times (cubed), gives the original number 243. Do you know? Cube roots apply to our real life also, like that for measuring dimensions, designing structures, density and mass, field of engineering etc.

Cube Root of 243 for Thai Students
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What Is the Cube Root of 243?

The cube root of 243 is 6.24025146916. The cube root of 243 is expressed as ∛243 in radical form, where the “ ∛ “  sign is called the “radical” sign. In exponential form, it is written as (243)1/3. If “m” is the cube root of 243, then, m3=243. Let us find the value of “m”.
 

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Finding the Cube Root of 243

The cube root of 243 is expressed as 3∛9 as its simplest radical form, since


 243 = 3×3×3×3×3


∛243 = ∛(3×3×3×3×3)


Group together three same factors at a time and put the remaining factor under ∛ .


∛243= 3∛9 


 We can find cube root of 243 through a method, named as, Halley’s Method. Let us see how it finds the result.
 

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Cube Root of 243 By Halley’s Method

Now, what is Halley’s Method?

 

It is an iterative method for finding cube roots of a given number N, such that, x3=N, where this method approximates the value of “x”.


Formula is ∛a≅ x((x3+2a) / (2x3+a)), where 


a=given number whose cube root you are going to find


x=integer guess for the cubic root


 Let us apply Halley’s method on the given number 243.


Step 1: Let a=243. Let us take x as 6, since, 63=216 is the nearest perfect cube which is less than 243.


Step 2: Apply the formula.  ∛243≅ 6((63+2×243) / (2(6)3+243))= 6.24


Hence, 6.24 is the approximate cubic root of 243.
 

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Common Mistakes and How to Avoid Them in the Cube Root of 243

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Cube Root of 243 Examples

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Problem 1

Find (∛240/ ∛243) × (∛241/ ∛243) × (∛242/ ∛243)

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Explanation

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Problem 2

The length, breadth, and height of a cuboid is 5 unit, 4 unit, and 4.5 cm respectively. To find its volume, also find the measure of a side of a cube, whose volume is 243 cubic units.

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Explanation

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Problem 3

Multiply ∛243 × ∛216

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Explanation

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Problem 4

What is ∛(243⁶^1/6) ?

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Explanation

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Problem 5

Find ∛(243-(-100)).

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Explanation

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FAQs on 243 Cube Root

1.What are perfect cube factors are included in 243?

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2.Is 243 a perfect square?

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3.What are the factors of 243?

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4.Which power of 3 is 243?

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5.What is 243 divisible by?

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6.How does learning Algebra help students in Thailand make better decisions in daily life?

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7.How can cultural or local activities in Thailand support learning Algebra topics such as Cube Root of 243?

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8.How do technology and digital tools in Thailand support learning Algebra and Cube Root of 243?

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9.Does learning Algebra support future career opportunities for students in Thailand?

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Important Glossaries for Cube Root of 243

  • Integers - Integers can be a positive natural number, negative of a positive number, or zero. We can perform all the arithmetic operations on integers. The examples of integers are, 1, 2, 5,8, -8, -12, etc.

 

  • Whole numbers - The whole numbers are part of the number system, which includes all the positive integers from 0 to infinity. 

 

  • Square root -The square root of a number is a value “y” such that when “y” is multiplied by itself → y × y, the result is the original number.

 

  • Polynomial - It is an algebraic expression made up of variables like “x” and constants, combined using addition, subtraction, multiplication, or division, where the variables are raised to whole number exponents.

 

  • Approximation - Finding out a value which is nearly correct, but not perfectly correct.

 

  • Iterative method - This method is a mathematical process which uses an initial value to generate further and step-by-step sequence of solutions for a problem.
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About BrightChamps in Thailand

At BrightChamps, we understand algebra is much more than symbols—it’s a way to unlock endless opportunities! We help children throughout Thailand grasp important math concepts, focusing today on the Cube Root of 243 with a special emphasis on cube roots—in an engaging, enjoyable, and easy-to-understand manner. Whether your child is calculating the speed of a roller coaster at Dream World, keeping score at a local football match, or managing their allowance to buy the latest gadgets, mastering algebra builds the confidence they need in daily life. Our interactive lessons are designed to be both fun and simple. Knowing kids in Thailand learn in diverse ways, we personalize our teaching for each learner. From the bustling streets of Bangkok to the tropical islands of Phuket, BrightChamps makes math relevant and exciting across Thailand. Let’s bring cube roots into every child’s math story!
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Jaskaran Singh Saluja

About the Author

Jaskaran Singh Saluja is a math wizard with nearly three years of experience as a math teacher. His expertise is in algebra, so he can make algebra classes interesting by turning tricky equations into simple puzzles.

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Fun Fact

: He loves to play the quiz with kids through algebra to make kids love it.

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