Gre Math

Question 1

What are digits?

Answer 1

Integers 0-9

Question 2

What are integers?

Answer 2

Positive and Negative whole numbers.

Question 3

What are the first 10 prime numbers?

Answer 3

2,3,5,7,11,13,17,19,23,29

Question 4

Change 16/3 from an improper fraction to a proper fraction

Answer 4

5 1/3

Question 5

Change 4 2/7 into an improper fraction.

Answer 5

30/7

Question 6

What is the percent change formula?

What is the percent change from 10 to 11?

Answer 6

New number - old number/Old number x 100

10 to 11 percent change = 1/10 = 10%

Question 7

Sq.rt. 15 x Sq.rt. 3

Answer 7

Sq.rt. 45

Question 8

Sq.rt. 15 / Sq.rt. 3 =

Answer 8

Sq.rt. 5

Question 9

Isosceles triangle

Answer 9

2 equal sides

Question 10

Area of a triangle

Answer 10

1/2bh

Question 11

Area of a circle

Answer 11

Pi R squared

Question 12

Circumference of a circle

Answer 12

2 pi R

Question 13

Volume of right circular cylinder

Answer 13

Pi R squared x Height

Question 14

Group formula

Answer 14

G1 + G2 - both + neither

Question 15

Standard deviation bell curve percentages

Answer 15

34 14 2

Question 16

Permutation key words

Answer 16

Arrangements, schedules

Question 17

Combination key words

Answer 17

Groups, pairs, teams.

Question 18

Does order matter for combinations or permutations?

Answer 18

Order only matters for permutations

Question 19

Is a square a rectangle?

Answer 19

Yes, it is a type of rectangle

Question 20

Is 0 an even integer?

Answer 20

No

Question 21

Area of a parrellelogram

Answer 21

Base x height of right triangle

Question 22

Combination without repetition formula

Answer 22

n!/r!(n-r)!

n= number to choose from
r=  how many chosen

Question 23

Permutation with repetition (3 combo lock)

Answer 23

N^r (10^3)

Question 24

Permutation without repetition

Answer 24

n!/(n-r)!

Question 25

Combination with repetition

Answer 25

(n+r-1)!/r!(n-1)!

Question 26

144^1/2

Answer 26

Same as sq.rt.of 144 =12