What is 2 - 5 = ⬜?
As an experienced high school mathematics teacher, I'm often asked to explain various mathematical concepts and equations. One of the fundamental operations in mathematics is subtraction, and a common question students have is "What is 2 - 5 = ⬜?"
To solve this equation, we need to understand the basic principles of subtraction. Subtraction is the inverse operation of addition, and it involves taking one number away from another. In this case, we are subtracting 5 from 2.
Let's break down the steps:
- Understand the equation: The equation '2 - 5 = ⬜' means that we need to find the value that should be placed in the box (⬜) to make the equation true.
- Perform the subtraction: To subtract 5 from 2, we start with the larger number (2) and take away the smaller number (5). When we do this, the result is a negative number.
- Determine the answer: The correct answer to the equation '2 - 5 = ⬜' is -3. This is because when we subtract 5 from 2, the result is -3.
Here's the step-by-step solution:
- 2 - 5 = -3
Therefore, the completed equation would be: 2 - 5 = -3
It's important for students to understand that subtraction can result in a negative number, as this is a fundamental concept in mathematics. By walking through this example step-by-step, students can develop a deeper understanding of how subtraction works and how to apply it to solve various mathematical problems.
As a high school mathematics teacher, I always encourage my students to practice solving equations like this, as it helps them build a strong foundation in basic mathematical operations. With consistent practice and a solid understanding of the underlying concepts, students can become proficient in solving a wide range of mathematical problems.