1. 1 – 2 + 3 – 4 + …. – 98 + 99 =

(A)  -50           (B)  -49            (C)  0               (D)  49             (E)  50

2. Which of the following statements is false?

(A)     All equilateral triangles are congruent to each other

(B)     All equilateral triangles are convex

(C)     All equilateral triangles are equiangular

(D)     All equilateral triangles are regular polygons.

(E)      All equilateral triangles are similar to each other.

3. The number halfway between 1/8 and 1/10 is?

(A)  1/80          (B)  1/40          (C)  1/18          (D)  1/9            (E)  9/80

4. Find the sum of all prime numbers between 1 and 100 that simultaneously 1 greater than a multiple of 4 and less than a multiple of 5.

(A)  118           (B)  137           (C)  158           (D)  187           (E)  245