Checkpoint: adding and taking away

A quiz team loses 3 points, then loses 4 more. Where does its score stand?

• On −7
• On −1, because 4 take away 3 is 1
• On 7, because two losses make a gain

What is (−5) + 2?

• −3
• 3, because the 2 wins
• −7, because 5 and 2 make 7

Which line means the same as 6 − (−4)?

• 6 − 4
• 6 + 4
• (−6) + 4

A cold room reads −7 °C. It warms by 3 degrees. What does it read now?

• −10 °C
• 4 °C
• −4 °C

What is (−2) − (−6)?

• −4
• 4
• −8