The Decimal Challenge - Kraft

In this activity, students will practice adding and subtracting decimals. They will create expressions to match given criteria (e.g., the greatest value, the closest to zero, etc.). Students will reason abstractly and structurally, arguing that their expressions are the greatest or closest to zero possible. See similar problems at: http://openmiddle.com. French translation courtesy of Jocelyn Dagenais: https://teacher.desmos.com/activitybuilder/custom/5a8f07b084eba308d481a9d9

By Nathan Kraft