Q1:

Which of the following mathematical systems is closed?

A. (W, multiplication)^{}B. (I, division)^{}C. (N, subtraction)^{}D. (odd numbers, addition) 
Answer 1:


Q2:

If x is the identity for an operation •, then a • x is equal to

A. a^{}B. x^{}C. 0^{}D. 1 
Answer 2:


Q3:

3 x 4 = 4 x 3 is an example of which mathematical property?

A. associative^{}B. distributive^{}C. commutative^{}D. inverse 
Answer 3:


Q4:

If p * q = p^{2} + q^{2} the value of 2 * 3 is

A. 13^{}B. 5^{}C. √13^{}D. 5 
Answer 4:


Q5: 
If a * b = a^{2}  b then 3 * 4 is equal to: 
A. 13^{}B. 2^{}C. 5^{}D. 13 
Answer 5: 

Q6: 
Which is an example of the commutative property? 
A. 3 x 4 = 4 x 3^{}B. 4 x 1 = 4^{}C. 4 + 0 = 4^{}D. 4 + 4 = 0 
Answer 6: 

Q7: 
What is the identity element for the system (W, multiplication)? 
A. 0^{}B. 1^{}C. 1^{}D. there is not one. 
Answer 7: 

Q8: 
In the system (I, addition), what is the inverse of 3? 
A. 0^{}B. 1^{}C. 1/3^{}D. 3 
Answer 8: 

Q9: 
If r • s = 2r  4s then the value of 3 • 1 is equal to: 
A. 10^{}B. 2^{}C. 2^{}D. 18 
Answer 9: 

Q10:

Which mathematical property does the equation 3(x + 2) = 3x + 6 show?

A. associative^{}B. distributive^{}C. commutative^{}D. inverse 
Answer 10:

