What expression is best represented in the diagram?

• 0 - (-9)

• 0 + (-9)

• • - 4 + (-5)

• -4 - (-5)

In the game Kazoo, points are awarded the following ways:

1. Teams lose one point each time they skip a turn.

• 2. Teams earn one point each time their team guesses correctly.

Maria’s team skipped 8 turns and guessed correctly 6 times. 

What was Maria’s team’s score?

• -2

• -14

• 2

• 14

3. A sunken ship is resting at 3,000 feet below sea level. 

• - Directly above the ship, a whale is swimming 1,960 feet below sea level.

• - Directly above the ship and the whale is a plane flying at 8,500 feet above sea level.

What is the distance between the plane and the whale?

Mathematical Equivalence

ON

3. A sunken ship is resting at 3,000 feet below sea level. 

• - Directly above the ship, a whale is swimming 1,960 feet below sea level.

• - Directly above the ship and the whale is a plane flying at 8,500 feet above sea level.

What is the distance between the plane and the SHIP?

Mathematical Equivalence

ON

3. A sunken ship is resting at 3,000 feet below sea level. 

• - Directly above the ship, a whale is swimming 1,960 feet below sea level.

• - Directly above the ship and the whale is a plane flying at 8,500 feet above sea level.

What is the distance between the Whale and the SHIP?

Mathematical Equivalence

ON

Match each diagram to its equation.

• 3 + (-3)

• 
• 3 + (-9)

• 
• 3 + (4)

• 

It was 40 degrees outside and then it got 50 degrees colder. What is the current temperature?

(do not type degrees)

Mathematical Equivalence

ON

It was 40 degrees outside and then it got 10 degrees warmer. What is the current temperature?

(do not type degrees)

Mathematical Equivalence

ON

It was 40 degrees outside and then it got 30 degrees colder. What is the current temperature?

(do not type degrees)

Mathematical Equivalence

OFF

Sort the solution as positive or negative.

Groups:

(a) Positive

,

(b) Negative