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Squaring a number means multiplying the number by itself. It is an arithmetic operation that involves taking a base number, and calculating the product of it being multiplied by the same number. For example, when you square 1.5, you are performing the multiplication: - \( 1.5 \times 1.5 \). When you compute this, the result is 2.25, which is the value of \( (1.5)^2 \). The operation of squaring has a few notable properties: - The result is always non-negative, even if the base number is negative. Thus, squaring effectively removes any negative sign. - If the base is a fraction, the square will be larger if the fraction is greater than 1 but smaller if the fraction is between 0 and 1.

Addition is a basic mathematical operation that combines two or more numbers to get a sum. It is one of the foundational operations in arithmetic and is represented by the plus symbol "+".When adding numbers, the order is not important, because addition is commutative, meaning that \( a + b = b + a \). In the original exercise, after squaring 1.5 to get 2.25, you simply add 0.5 to this result:- \( 2.25 + 0.5 = 2.75 \).Remember, the key to addition is:- Align the numbers by their decimal points or digits if they have them.- Start adding from the rightmost digit.- Carry over any extra value to the next column if needed.

Arithmetic operations are the basic building blocks of all mathematical calculations. These include addition, subtraction, multiplication, and division. Squaring a number is a particular form of multiplication, and combining it with addition covers two key types of arithmetic operations. Each operation follows its distinct rules: - **Multiplication** involves calculating the product of two numbers. In the case of squaring, it's multiplying the number by itself. - **Addition** combines multiple numbers into a larger sum, or combines a result with a constant value as in the exercise. The exercise involved two steps of arithmetic operations: 1. **Squaring** the number 1.5 to get 2.25. 2. Then **adding** 0.5 to that squared result. These operations form calculations that are fundamental in mathematics. They are frequently the stepping stones for more complex problems, providing the skills needed to solve various mathematical challenges.