The Number System - GRADE 7

What is the opposite of zero?

• -0

• 0

• Zero has no opposite

• +0

What is the additive inverse of +2?

• +2

• 2

• -2

• 4

Represent a loss of 20 yards as an integer.

• -20

• 20

• -60

• 60

A football team gained 7 yards and then lost 20 yards. What is the overall change?

• -27 yards

• 27 yards

• -13 yards

• 13 yards

A record high temperature in Dallas, Texas is 80 degrees. The record low temperature is -4 degrees. Find the difference between the high and low temperature.

• 84 degrees

• -84 degrees

• 76 degrees

• -76 degrees

Shelly is in a cave 30 feet below the cave entrance. She descends 10 feet and then ascends 15 feet. Find her new position relative to the cave entrance.

• 35 feet above the cave entrance

• 35 feet below the cave entrance

• 25 feet above the cave entrance

• 25 feet below the cave entrance

Louis earned 50 points in a video game. He lost 30 points, earned 60 points, then lost 40 more points. What is his final score?

• 30 points

• 40 points

• 50 points

• 60 points

The temperature dropped 3 degrees every hour for 5 hours. What was the total degrees the temperature changes in the 5 hours?

• -15 degrees

• -8 degrees

• -2 degrees

• -3 degrees

Trent made five of his truck payments late and was fined five late fees. The total change to his savings from late fees was -$50. How much was one late fee?

• $50

• $250

• $5

• $10

Mr. LLoyd has some money in his wallet. He pays the babysitter $10 an hour for 3 hours of babysitting. His wife give him $20 and he puts the money in his wallet. By how much does the amount change?

• +$10

• -$10

• +$50

• -$50