125+90-5

less than a minute read 13-02-2025

Solving the Math Problem: 125 + 90 - 5

This article will guide you through solving the simple arithmetic problem: 125 + 90 - 5. We'll break down the steps, explain the order of operations, and show you how to arrive at the correct answer. This is a great example to understand basic arithmetic principles.

Understanding Order of Operations (PEMDAS/BODMAS)

Before we dive into the solution, let's quickly review the order of operations. This is crucial for solving any mathematical equation correctly. The common acronyms are PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction) and BODMAS (Brackets, Orders, Division and Multiplication, Addition and Subtraction). Both mean the same thing. In this problem, we only have addition and subtraction.

Step-by-Step Solution:

Addition: We start by adding 125 and 90. 125 + 90 = 215
Subtraction: Next, we subtract 5 from the result of the addition. 215 - 5 = 210

The Answer:

Therefore, the solution to 125 + 90 - 5 is $\boxed{210}$ .

Why Order of Operations Matters

Let's look at what would happen if we didn't follow the order of operations. If we subtracted 5 from 90 before adding 125, we would get a different, incorrect result:

Subtraction (Incorrect Order): 90 - 5 = 85
Addition (Incorrect Order): 125 + 85 = 210

In this specific instance, we still arrive at the correct answer. However, this is purely coincidental and won't always be the case with more complex equations. Sticking to the correct order of operations is essential for accuracy.

Practice Problems

To solidify your understanding, try solving these similar problems:

75 + 25 - 10 = ?
150 + 50 - 25 = ?
300 - 100 + 50 = ?

By practicing these problems, you can reinforce your understanding of basic arithmetic and the importance of following the order of operations. Remember, consistent practice makes perfect!