Square of 1.25

The square of a number is the product of the number by itself. The square of 1.25 is 1.25 × 1.25. The square of a positive and a negative number is always positive. For example, 5² = 25; (-5)² = 25.

The square of 1.25 is 1.25 × 1.25 = 1.5625.

Square of 1.25 in exponential form: (1.25)²

Square of 1.25 in arithmetic form: 1.25 × 1.25

The square of a number is obtained by multiplying the number by itself. Let’s learn how to find the square of a number through different methods.

1. By Multiplication Method
2. Using a Formula
3. Using a Calculator

In this method, we multiply the number by itself to find the square. The product here is the square of the number. Let’s find the square of 1.25.

Step 1: Identify the number. Here, the number is 1.25

Step 2: Multiplying the number by itself, we get, 1.25 × 1.25 = 1.5625.

The square of 1.25 is 1.5625.

In this method, the formula a² is used to find the square of the number, where 'a' is the number.

Step 1: Understanding the equation Square of a number = a²

a² = a × a

Step 2: Identifying the number and substituting the value in the equation.

Here, ‘a’ is 1.25 So: (1.25)² = 1.25 × 1.25 = 1.5625

Using a calculator to find the square of a number is the easiest method. Let’s learn how to use a calculator to find the square of 1.25.

Step 1: Enter the number in the calculator Enter 1.25 in the calculator.

Step 2: Multiply the number by itself using the multiplication button (×) That is 1.25 × 1.25

Step 3: Press the equal to button to find the answer Here, the square of 1.25 is 1.5625.

Tips and Tricks for the Square of 1.25: Tips and tricks make it easy to understand and learn the square of a number. To master the square of a number, these tips and tricks will help. -

• The square of a number can also be found using the formula (a + b)² = a² + 2ab + b² for numbers in the form of (a + b). 

• The square of a number with a fractional part can be estimated by squaring the integer and fractional parts separately and adding them, though this is an approximation. 

• If the square root of a number is a fraction or a decimal, then the number is not a perfect square. For example, √1.44 = 1.2 

• The square root of a perfect square is always a whole number.

• Decimal number: A number that includes a decimal point followed by digits.

• Exponential form: Writing a number in terms of a base and an exponent, such as (1.25)².

• Square root: The inverse operation of finding the square. The square root of a number is a number whose square is the original number.

• Perfect square: A number that is the square of an integer.

• Multiplication: The mathematical operation of scaling one number by another.