The problem presents a subtraction equation involving negative numbers and asks us to complete it. The equation is $-3 - (-1) = ?$ The integer chips are used to model this subtraction. We start with 3 negative chips (representing -3). Then, we take away 1 negative chip (subtracting -1).
2025/3/21
1. Problem Description
The problem presents a subtraction equation involving negative numbers and asks us to complete it. The equation is The integer chips are used to model this subtraction. We start with 3 negative chips (representing -3). Then, we take away 1 negative chip (subtracting -1).
2. Solution Steps
We are given the subtraction problem .
Subtracting a negative number is the same as adding its positive counterpart. Therefore, is equivalent to .
To calculate , we can think of it as starting at -3 on the number line and moving 1 unit to the right. This lands us at -
2. Alternatively, we can consider having 3 negative chips and adding 1 positive chip. The positive and negative chip would cancel each other, leaving us with 2 negative chips, representing -
2.
3. Final Answer
-2