Loading...

Introduction

When do we subtract doubles in real life?

Goal:

Goal:

Mia is ready for takeoff! She is sitting in the cockpit of a rocket that will send her to Mars. She sees there are 8 blinking lights on the dashboard, and she tells Mission Control. 4 of the lights go off! How many lights are still blinking on Mia’s dashboard?

How can we help Mia find out how many lights are still blinking? Click the question below to reveal the answer!

Dashboard of a rocket, with 4 active buttons, that are blinking. And, also, 4 buttons that are inactive, that are not blinking

Question

How can we find out how many lights are still blinking?