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11. Simplify (3 x 42) + (72 = 8)
A. 37
B. 47
C. 57
D.67
12. Solve 9 + (5 x 3 + 6) - 7
A.
B. 12
11
D. 69
13. If 8 + (3 + 1 + 22) is 16, then; 57- (4 x 8 + 22) is
A. 39
B. 49
C. 59
D. 30
14. Perform the equation (90 = 15) + (6 x 4) - (56 = 8).
A. 23
B. 25
C. 27
D. 20
15. Evaluate the following expression: 8+ 2 x 22 - 2
A. 14
B. 15
C. 17
D. 4
16. What is the result in 7 + 9-3 x 5?
A. 1
B. 2
C. 3
D. 81
17. Simplify 32 x (33 = 3)
A. 14
C. 64
B. 30
D. 9
18. Find the N on the following equation 9 + 2 - 15 + 3 = N
A. 6
B. 7
C. 8
D. 28
19. In the expression 12- 3 + 18 + 6 x 3, what is the answer?
A. 24
B. 18
C. 20
20. The following statements about exponential notations are correct except
A. 54 means 5 is multiplied by itself four times
B. In 63, 6 is the base and 3 is the exponent.
C. 42 is the exponential form of 4 x 4.
D. 32 means 3 multiplied by 2.​