Chapter 1-3

-2 + 4 

• -2
• 2
• 0
• -4

-9 + (-5)

• -14
• 14
• -4

-14 + (-3)

• -17
• 11
• -11
• 17

-86 + 92

• 6
• -274
• 274
• -6

Sandra plays a matching game. In order to advance to the next level, she must score at least 10 points. She scores 18 points for correct matches and -6 points for incorrect matches. Did Sandra make it to the next level?

• Yes
• No

Ashley’s math average decreased 12 points to 78. Then she completed an extra credit assignment and raised her final average by 5 points. What was her starting average? 

• 78
• 12
• 90
• 83

Ashley’s math average decreased 12 points to 78. Then she completed an extra credit assignment and raised her final average by 5 points. What was her final average?

• 78
• 12
• 90
• 83

Jonah’s cell phone came with 64 GB of memory. He has used 15 GB. He then uses 5 GB of memory to record photos and videos from a trip. Use the addition expression

64 + (-15) + (-5)

to find how much memory is left on his phone.

• 84

• 44

• 49

• 59

Stella walks down a flight of stairs to the basement. Then she walks back up the stairs and up another flight of stairs to the second floor of her house. Each flight of stairs represents a change of 12 feet in height. How far is Stella above the ground?

• -12
• 12
• 0
• 24

Javier had $305 in his bank account. His bank charges a fee of $7.50 each month that a balance is below $500. If he makes no other deposits or withdrawals, how much money is in Javier’s account at the end of three months? 

• $282.50
• $297.50
• $290.00
• $812.50