# United States Customary Units and Complete Item Essay

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1. The single factor that made the Hindu-Arabic number system superior is the

(A) ability to perform addition.

(B) compounding of powers of ten.

(C) invention of zero.

(D) ability to repeat numbers.

2. The two purposes of the digits in any number are to show the

(A) natural and face values.

(B) cardinal and face values.

(C) natural and place values.

(D) cardinal and place value.

3. Which set consists entirely of natural numbers?

(A) ¾, 4, 12

(B) 5, 14, 17.8

(C) 4, 12, 31

(D) 0, 6, 9

4. Which example illustrates the principle of closure?

(A) 8 - 15 =

(B) 5 - 8 =

(C) 5 x 8 =

(D) 5 ÷ 8 =

5. Which equation is an integer?

(A) 5

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(A) 5

(B) 6

(C) 7

(D) 8

30. If 3⁄4 of 1% of the battalion are at sickbay (a total of 12 Marines), how many Marines are in the battalion?

(A) 1700

(B) 1650

(C) 1600

(D) 1550

31. Which algebraic expression is a monomial term?

(A) 45x3y

(B) 100a - 35

(C) 3x + y + x + y

(D) (xz)3 - 1x2

32. Which algebraic expression contains like terms?

(A) 12xy, 4xy

(B) (xy)2, 5x3

(C) 100x, 35x2

(D) 45x3y, 45xy

33. Which algebraic expression is a polynomial term?

(A) 45x3yz

(B) 12xy, 4xy

(C) 45x3y

(D) 46abc – 5

34. Complete item by performing the proper operations of evaluation. 2a2 - a + 4, (a = 5)

(A) 95

(B) 49

(C) 36

(D) 71

35. Complete item by determining if the equation is true or false.

4 x 61/2 = 6 x 41/2

(A) 24 = 25 (false)

(B) 26 = 27 (false)

(C) 24 = 24 (true)

(D) 26 = 26 (true)

36. Complete item by determining the root of the equation.

8z + 2z + 7z + 187 = 221

(A) z = 3

(B) z = 3.5

(C) z = 2

(D) z = 2.5

37. Complete item by determining whether the inequalities are true or false.

4(9 - 5) - 8 + 2 / 5 ≠ 4 + 3 x 2

(A) 14 = 10 (false)

(B) 14 ≠ 10 (true)

(C) 24 = 14 (false)

(D) 24 ≠ 14 (true)

38. You are in a defense position and have been given 20 40mm rounds for your M203 grenade launcher for every 300 feet of front. How many rounds will you receive for 450 feet of front?

(A) 28

(B) 29

(C) 30

(D) 31