EXAMPLE 2
Add Integers with Different Signs
Kara entered her chili recipe into the neighborhood
cook-off. Nine judges rated each recipe with a thumbs up
(+1) or thumbs down (-1). What was the final rating for
Kara's recipe?
CHILI COOK-OFF
Chef: Kara
Reasoning There were more
thumbs-down votes, so the final
rating is negative.
SCORE
Total
Use a number line to represent Kara's final rating.
Add integers to find Kara's final rating
Start at 0. Move 5 units left
for-5. Move 4 units right
5+4