Question 1
11×1∅×∅=?
A. 0
B. 111
C. 110
D. 1
Answer: A
0
Question 2
2∅+?+7-12=2∅
A. 7
B. 2
C. 5
D. 9
Answer: C
5
Question 3
17+?+12-∅= 32
A. 10
B. 5
C. 0
D. 3
Answer: D
3
Question 4
32-?-1∅+4=16
A. 8
B. 10
C. 2
D. 12
Answer: B
10