Integer Master Challenge

What’s inside

1. The temperature was −12°C. It increased by 25°C. What was the final temperature?
   -13°C · 13°C
2. A submarine is 35 metres below sea level. It descends another 28 metres. What is its new position?
   63 m · −63 m
3. The temperature was 18°C and dropped by 32°C. What was the final temperature?
   −14°C · −24°C
4. A diver is 48 metres below sea level. He rises 65 metres. What is his new position?
   16 m · 17 m
5. An elevator starts on floor 15 and moves down 27 floors. On which floor does it stop?
   -11 (basement) · −12 (basement)
6. The temperature was −8°C. It decreased by another 19°C. What was the final temperature?
   27°C · −27°C
7. A player loses 12 points in each round for 8 rounds. What is the total score change?
   -106 points · −96 points
8. A submarine descends 15 metres per minute for 6 minutes. What is its total change in position?
   −80 m · −90 m
9. A player gains 14 points in each round for 7 rounds. What is the total score change?
   98 points · 99 points
10. A diver is 144 metres below sea level. He rises at 12 metres per minute. How long does he need to reach sea level?
    11 minutes · 12 minutes
11. A total score loss of 168 points is shared equally over 12 rounds. What is the average score change per round?
    −12 points · −14 points
12. The temperature was −25°C and increased by 46°C. What was the final temperature?
    -21°C · 21°C