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Last updated on May 27th, 2025

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Cube of 845

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When a number is multiplied by itself thrice, the resultant number is called the cube of a number. Cubing is used while comparing sizes of objects or things with cubic measurements. In this topic, we shall learn about cubes of 845.

Cube of 845 for Singaporean Students
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Cube of 845

A cube number is a value obtained by raising a number to the power of 3, or by multiplying the number by itself three times. When you cube a positive number, the result is always positive. When you cube a negative number, the result is always negative. This is because multiplying a negative number by itself three times results in a negative number. The cube of 845 can be written as 845³, which is the exponential form. Or it can also be written in arithmetic form as 845 × 845 × 845.

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How to Calculate the Value of Cube of 845

In order to check whether a number is a cube number or not, we can use the following three methods: multiplication method, a factor formula (a³), or by using a calculator. These three methods will help individuals to cube the numbers faster and easier without feeling confused or stuck while evaluating the answers. By Multiplication Method Using a Formula Using a Calculator

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By Multiplication Method

The multiplication method is a process in mathematics used to find the product of two numbers or quantities by combining them through repeated addition. It is a fundamental operation that forms the basis for more complex mathematical concepts. Step 1: Write down the cube of the given number. 845³ = 845 × 845 × 845 Step 2: You get 603,729,125 as the answer. Hence, the cube of 845 is 603,729,125.

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Using a Formula (a³)

The formula (a + b)³ is a binomial formula for finding the cube of a number. The formula is expanded as a³ + 3a²b + 3ab² + b³. Step 1: Split the number 845 into two parts. Let a = 800 and b = 45, so a + b = 845 Step 2: Now, apply the formula (a + b)³ = a³ + 3a²b + 3ab² + b³ Step 3: Calculate each term a³ = 800³ 3a²b = 3 × 800² × 45 3ab² = 3 × 800 × 45² b³ = 45³ Step 4: Add all the terms together: (a + b)³ = a³ + 3a²b + 3ab² + b³ (800 + 45)³ = 800³ + 3 × 800² × 45 + 3 × 800 × 45² + 45³ 845³ = 512,000,000 + 86,400,000 + 4,860,000 + 91,125 845³ = 603,729,125 Step 5: Hence, the cube of 845 is 603,729,125.

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Using a Calculator

To find the cube of 845 using a calculator, input the number 845 and use the cube function (if available) or multiply 845 × 845 × 845. This operation calculates the value of 845³, resulting in 603,729,125. It’s a quick way to determine the cube without manual computation. Step 1: Ensure the calculator is functioning properly. Step 2: Press 8 followed by 4 and 5 Step 3: If the calculator has a cube function, press it to calculate 845³. Step 4: If there is no cube function on the calculator, simply multiply 845 three times manually. Step 5: The calculator will display 603,729,125.

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Tips and Tricks for the Cube of 845

The cube of any even number is always even, while the cube of any odd number is always odd. The product of two or more perfect cube numbers is always a perfect cube. A perfect cube can always be expressed as the product of three identical groups of equal prime factors.

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Common Mistakes to Avoid When Calculating the Cube of 845

There are some typical errors that individuals might make during the process of cubing a number. Let us take a look at five of the major mistakes that might occur:

Mistake 1

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Incorrect Multiplication

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Individuals might multiply the numbers only twice, such as 845 × 845 and not 845 × 845 × 845. Always remember that 845³ = 845 × 845 × 845.

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Solved Examples on Cube of 845

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Problem 1

What is the cube and cube root of 845?

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The cube of 845 is 603,729,125, and the cube root of 845 is approximately 9.452.

Explanation

First, let’s find the cube of 845. We know that the cube of a number, such that x³ = y Where x is the given number, and y is the cubed value of that number So, we get 845³ = 603,729,125 Next, we must find the cube root of 845 We know that the cube root of a number ‘x’, such that ³√x = y So, we get ³√845 ≈ 9.452 Hence the cube of 845 is 603,729,125 and the cube root of 845 is approximately 9.452.

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Problem 2

If the side length of the cube is 845 cm, what is the volume?

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The volume is 603,729,125 cm³.

Explanation

Use the volume formula for a cube V = Side³. Substitute 845 for the side length: V = 845³ = 603,729,125 cm³.

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Problem 3

How much larger is 845³ than 745³?

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845³ – 745³ = 377,795,875.

Explanation

First, find the cube of 845³, which is 603,729,125. Next, find the cube of 745³, which is 225,933,250. Now, find the difference between them using the subtraction method. 603,729,125 – 225,933,250 = 377,795,875 Therefore, 845³ is 377,795,875 larger than 745³.

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Problem 4

If a cube with a side length of 845 cm is compared to a cube with a side length of 245 cm, how much larger is the volume of the larger cube?

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The volume of the cube with a side length of 845 cm is 603,729,125 cm³.

Explanation

To find its volume, we multiply the side length by itself three times (since it’s a 3-dimensional object). Cubing 845 means multiplying 845 by itself three times: 845 × 845 = 714,025, and then 714,025 × 845 = 603,729,125. The unit of volume is cubic centimeters (cm³) because we are calculating the space inside the cube. Therefore, the volume of the cube is 603,729,125 cm³.

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Problem 5

Estimate the cube 844.9 using the cube of 845.

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The cube of 844.9 is approximately 603,729,125.

Explanation

First, identify the cube of 845, The cube of 845 is 845³ = 603,729,125. Since 844.9 is only a tiny bit less than 845, the cube of 844.9 will be almost the same as the cube of 845. The cube of 844.9 is approximately 603,729,125 because the difference between 844.9 and 845 is very small. So, we can approximate the value as 603,729,125.

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FAQs on Cube of 845

1.What are the perfect cubes up to 845?

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2.How do you calculate 845³?

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3.What is the meaning of 845³?

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4.What is the cube root of 845?

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5.Is 845 a perfect cube?

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

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7.How can cultural or local activities in Singapore support learning Algebra topics such as Cube of 845?

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8.How do technology and digital tools in Singapore support learning Algebra and Cube of 845?

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

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Important Glossaries for Cube of 845

Binomial Formula: An algebraic expression used to expand the powers of a number, written as (a + b)ⁿ, where ‘n’ is a positive integer raised to the base. The formula is used to find the square and cube of a number. Cube of a Number: Multiplying a number by itself three times is called the cube of a number. Exponential Form: A way of expressing numbers using a base and an exponent (or power), where the exponent value indicates how many times the base is multiplied by itself. For example, 2³ represents 2 × 2 × 2 equals 8. Volume of a Cube: The amount of space occupied by a cube, calculated using the formula V = Side³. Perfect Cube: A number that can be expressed as the cube of an integer, such as 1, 8, 27, etc.

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About BrightChamps in Singapore

At BrightChamps, algebra is more than just digits—it opens doors to countless possibilities! We are passionate about supporting kids all across Singapore in mastering vital math skills, like today’s focus on the Cube of 845, with a special focus on cubes—in a lively, easy-to-understand, and enjoyable way. Whether your child is figuring out how fast a roller coaster moves at Universal Studios Singapore, tracking scores at local football matches, or managing their allowance for the newest gadgets, mastering algebra builds their confidence in everyday life. Our interactive lessons make math fun and approachable. Since kids in Singapore learn differently, we customize our teaching to suit each learner’s style. From the city’s bustling streets to its beautiful gardens, BrightChamps brings algebra to life, making it exciting and meaningful across Singapore. Let’s make cubes a fun part of every child’s math journey!
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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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