1. What is the value of this expression, 12 + 2 x 5 ?
A. 6
B. 10
C. 30
D. 40
2. What is the value of (23+5 - 2) x (3 + 3 x 5)?
A. 5
B. 11
C. 15
D. 55
3. In 5 + 8-3, what is the value?
A. 13
B. 10
C. 8
D. 3
4. In [4+ (5 x 4 - 3)] + (6 - 5 + 2), what is the value?
A. 6
B. 7
C. 21
D. 24
5. In 9 + 3 x 5 + 7-4, what is the value?
A. 18
B. 15
C. 12
D. 10​