Question

use the chips to add.
$5 + (-1)$
(a) show how to do the problem. click here to learn more abou
chip bank
(b) $5 + (-1) = \square$

Explanation:

Step1: Represent 5 with + chips

Place 5 yellow (+) chips: $+++++$

Step2: Represent -1 with a - chip

Add 1 red (-) chip: $+++++ -$

Step3: Pair + and - chips

One + and one - cancel out: $++++$ (remaining 4 + chips)

Answer:

$5 + (-1) = 4$