Question

use counters to add -3 + -6. you start with: you add: which picture shows the sum?

Explanation:

Step1: Recall addition of negative numbers

When adding negative numbers, we add their absolute - values and keep the negative sign. So, for \(-3+( - 6)\), we have \(| - 3|+| - 6|=3 + 6\).

Step2: Calculate the sum

\(3+6 = 9\), and since both numbers are negative, the result is \(-9\). The picture with 9 negative (red with a minus sign) counters represents the sum.

Answer:

The picture with 9 red circles each having a minus sign on them.