1. What is the total of (+31), (+19) and (-12)
A. 24 B. 28 C. 38 D. 52

2. What is the sum of (+47), (-16) and (-39)?
A. -8 B. +8 C.-18 D. +18 3. What is the difference when - 36 is subtracted from 52?
A. 16 B. -16 C. 88 D. - 88
4. What is the product of (-28) and (- 13)? A. -364 B. - 264 C. 314 D. 364
5. What is the product of (10) x (-25) x (9)? A. -2 050 B. - 2 250 C. 2 050 D. 2 250
6. What is the quotient when 192 is divided by -12?
A. -16 B. - 14 C. 16 D. 18
7. What is - 650 - 25?
A. 21 B. 24 C. 26 D. - 26
8. From the ground floor, an elevator goes up 10 floors and then goes down 6 floors. At what floor did the elevator stop?
A. 6th floor B. 5th floor C. 4th floor
D. 3rd floor
9. At the beginning, Kim has 25 cards. He then gave Il cards to his friend. His cousin came over and gave him 17 cards. His uncle also came and gave him 18 cards. How many cards does he have now?
A. 60 B. 49 C. D. 14
10. What is the distance between an airplane that is 890 m above the sea level and a submarine that is 102 m below sea level?
A. 788 m B. 978 m C. 892 m D. 992 m​