Number Sense
|x| = 10, what two values can x =?
10 or -10
What is the greatest common factor of 20 and 15?
5
Solve for x:
3x + 6 = - 9
-5
Factor: x2 - 9x + 18
(x - 6)(x - 3)
What is the mode? 2, 3, 7, 4, 8, 7, 3, 9, 7
7
How many months of the year have 28 days?
All of them.
What is the reciprocal of 15?
1/15
Find the product of 1/4 and 4/7
Fully simplify!
1/7
Solve: 2x - 4 = 5x + 11
-5
log100 = ?
What is the median? 7, 12, 13, 6, 9, 2, 4, 3, 9
7
What has hands and a face, but can’t hold anything or smile?
A clock
2-2 =?
1/4
Simplify: -5 - 2(4-7)2
-23
Two lines are given below:
y1= 2x+1 & y2= -1/2x - 9
How will these lines intersect?
Perpendicular (at a 90 degree angle)
Simplify: x2 - 8x + 16/x2 + 2x - 24
x-4/x+6
What is the probability of rolling an even number on a die?
3/6 = 1/2
What has thirteen hearts, but no other organs?
A deck of cards
What is 15% of 1200?
180
Simplify:
2x2 + 4x - 3 - (x2 +2x - 3)
x2 + 2x
Simplify: (4x3 + 2x2 -8x)/2x
2x2 + x - 4
Solve for x:
x2 - 36 = 0
x = 6 or -6
What is the average test score for the following set of scores:
73, 85, 92, 54, and 65
73.8
What 3 consecutive numbers give the same result when multiplied and added together?
1, 2, and 3
1+2+3=6 AND 1x2x3=6
100 divided by 1/2 = ?
200
Simplify: (3a3 b-1 c2)(7a4 b c)
21 a7 c3
Solve the inequality:
-2x - 4 < 16
x>-10
Solve:
x2 + 4x = 0
x = 0 and x = -4
What is the probability of randomly pulling a J, Q or K from a deck of cards?
12/52 = 3/13
I am a three-digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit. What number am I?
194