Evaluate the sum using the number line. -7 + (-1) = _____

Write an equation to represent the value of the model.

How many zero pairs are shown in the model below?

Simplify the following expression: (11 - 4) - 3

Simplify the following expression: 5 + (2 - 12)

Which expression is equivalent to 7 - 9?

• -9 + (-7)
• 7 - (-9)
• -7 + (-9)
• 7 + (-9)

Yesterday the temperature at noon was 19°F. By midnight, it had decreased by 22°F. Write an expression that represents the change in the temperature from noon to midnight.

Dr. Elliott’s investment account lost $50, gained $200 and then lost $400. What was the total change in the amount of money in Dr. Elliott’s investment account?

• -$250
• -$150
• $250
• $650

Please answer the question below:

• -40 feet
• 40 feet
• -208 feet
• 208 feet

Solve.

-20 + (-14)