Cube of 0.125

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 a negative number multiplied by itself three times results in a negative number.

The cube of 0.125 can be written as 0.125³, which is the exponential form.

Or it can also be written in arithmetic form as, 0.125 × 0.125 × 0.125.

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

• By Multiplication Method
   
• Using a Formula (a³)
   
• Using a Calculator

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. 0.125³ = 0.125 × 0.125 × 0.125

Step 2: You get 0.001953125 as the answer.

Hence, the cube of 0.125 is 0.001953125.

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 0.125 into two parts, as a and b. Let a = 0.1 and b = 0.025, so a + b = 0.125

Step 2: Now, apply the formula (a + b)³ = a³ + 3a²b + 3ab² + b³

Step 3: Calculate each term a³ = 0.1³ 3a²b = 3 × 0.1² × 0.025 3ab² = 3 × 0.1 × 0.025² b³ = 0.025³

Step 4: Add all the terms together: (a + b)³ = a³ + 3a²b + 3ab² + b³ (0.1 + 0.025)³ = 0.1³ + 3 × 0.1² × 0.025 + 3 × 0.1 × 0.025² + 0.025³ 0.125³ = 0.001 + 0.000075 + 0.00001875 + 0.000015625 0.125³ = 0.001953125

Step 5: Hence, the cube of 0.125 is 0.001953125.

To find the cube of 0.125 using a calculator, input the number 0.125 and use the cube function (if available) or multiply 0.125 × 0.125 × 0.125. This operation calculates the value of 0.125³, resulting in 0.001953125. It’s a quick way to determine the cube without manual computation.

Step 1: Ensure the calculator is functioning properly.

Step 2: Press 0.125

Step 3: If the calculator has a cube function, press it to calculate 0.125³.

Step 4: If there is no cube function on the calculator, simply multiply 0.125 three times manually.

Step 5: The calculator will display 0.001953125.

• The cube of any positive number is always positive, while the cube of any negative number is always negative.
   
• 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.

• 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.

• Cube Root: The number that produces a given number when cubed, such as ∛8 = 2, since 2 × 2 × 2 = 8.

• Perfect Cube: A number that can be expressed as the cube of an integer without a remainder, such as 8, which is 2³.