Question

you can use integer counters to model (2 + (-3)).

start with 2 positive counters.

then add 3 negative counters.

add.

(2 + (-3) = \square)

Explanation:

Form zero pairs to simplify the expression

$$ 2 + (-3) = (2 + (-2)) + (-1) $$

Evaluate the zero pairs and remaining counters

$$ 0 + (-1) = -1 $$

Answer:

Add.

\(2 + (-3) =\) <blank>-1</blank>