1.	Evaluate 2c - 4k if c = 16 and k = 5.
		A.	18	B.	12
		C.	52	D.	16
		Hint
	2.	Evaluate if a = 10 and b = 5.
		A.	4,000	B.	2,000
		C.	200	D.	400
		Hint
	3.	Evaluate 23 + 5 × (6 + 4) ÷ 2.
		A.	33	B.	41
		C.	108	D.	65
		Hint
	4.	Evaluate 4a + 2b – 3c if a = 2, b = 3, and c = 4.
		A.	31	B.	11
		C.	6	D.	2
		Hint
	5.	Which is a counterexample for the following statement? The difference of two odd numbers is an odd number.
		A.	15 – 4 = 11	B.	15 - 7 = 8
		C.	12 – 5 = 7	D.	7 + 9 = 16
		Hint