The problem asks us to evaluate the expression $-2 + 8$ using the provided diagram of integer chips.
2025/3/21
1. Problem Description
The problem asks us to evaluate the expression using the provided diagram of integer chips.
2. Solution Steps
The diagram shows two negative chips (represented in the picture as pink circles with a minus sign) and eight positive chips (represented in the picture as yellow circles with a plus sign). We are calculating .
We can think of each positive chip cancelling out one negative chip. This means we have two pairs of one positive chip and one negative chip that cancel out to zero.
We are then left with positive chips.
Therefore, .
3. Final Answer
6