Cube of 1.3

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 by itself three times results in a negative number.

The cube of 1.3 can be written as 1.3³, which is the exponential form, or it can also be written in arithmetic form as 1.3 × 1.3 × 1.3.

In order to check whether a number is a cube number or not, we can use the following three methods, such as 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. 1.3³ = 1.3 × 1.3 × 1.3

Step 2: You get approximately 2.197 as the answer.

Hence, the cube of 1.3 is approximately 2.197.

While there isn't a binomial formula specifically for this simple calculation, you can still manually calculate it step-by-step.

Step 1: Use a simple calculation method since 1.3 is a small number. 1.3 × 1.3 = 1.69

Step 2: Multiply the result by 1.3 again. 1.69 × 1.3 = 2.197

Step 3: Hence, the cube of 1.3 is approximately 2.197.

To find the cube of 1.3 using a calculator, input the number 1.3 and use the cube function (if available) or multiply 1.3 × 1.3 × 1.3. This operation calculates the value of 1.3³, resulting in approximately 2.197. It’s a quick way to determine the cube without manual computation.

Step 1: Ensure the calculator is functioning properly.

Step 2: Enter 1.3.

Step 3: If the calculator has a cube function, press it to calculate 1.3³.

Step 4: If there is no cube function on the calculator, simply multiply 1.3 three times manually.

Step 5: The calculator will display approximately 2.197.

• The cube of any positive number is always positive, while the cube of any negative number is always negative.
   
• The cube of a number slightly greater than 1 will yield a number slightly greater than the original number.
   
• When working with decimals, ensure accuracy by carefully aligning decimal points during multiplication.

• Cube of a Number: Multiplying a number by itself three times is called the cube of a number.

• Decimal Multiplication: The process of multiplying numbers that have decimal points, requiring careful alignment of decimals.

• 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, 1.3³ represents 1.3 × 1.3 × 1.3.

• Cube Root: The number that must be multiplied by itself three times to equal a given value. For example, ∛1.3 is the cube root of 1.3.

• Volume of a Cube: The amount of space occupied by a cube, calculated as the side length cubed (Side³).