Algebra
Simplify
5x - 3y + 2x + 6y
7x + 3y
What is the midpoint of (3, 1) and (5, 3)?
(4, 2)
What is the mean of the following numbers?
7, 11, 12
10
Write a prime number that is between 10 and 20
possibilities: 11, 13, 17, 19
A number x itself is called a ?
Square number
If x = -3
What is 3x - 1?
- 10
What is the length of the line between (4, 7) and (11, 7)?
7
What is the median of the numbers?
2, 3, 4, 5, 8, 8
4.5
What is 4/5 + 1/3 ?
17/15 or 1 2/15
Round 24,683.2 to 3 significant figures
24,700
3x + 7 = 22
x = 5
What is the gradient if rise = 5 and run = 3?
5/3
What is the mode of the following set of numbers?
3, 3, 6, 6, 6, 9, 10
6
Find 3% of 200
6
In a jar there are 10 strawberry and 6 lemon candies. What is the probability of picking a strawberry candy at random from the jar?
5/8
Solve
3x + y = 7
6x + y = 13
x = 2, y = 1
What is the gradient of the line with equation y=3x-11
3
What is the lower quartile of the number set?
22, 23, 26, 26, 29, 33
23
$240 is shared between Mr. Liu and Mr. Mathews in ratio 3:2. How much does Mr. Liu get?
$144
Draw a Venn diagram for the following.
12 students play cricket
15 students play tennis
5 play both sports
Two overlapping circles with numbers
7, 5, 10
Solve
2x + 3y = 7
4x - 3y = -13
x = -1, y = 3
What is the length of the line from (1,1) to (5, 4)?
5
What is the interquartile range of the following number set
8, 9, 11, 14, 14, 17
5
If I invest $4000 at 2% simple interest, how much would I have in total after 3 years?
$4240
Draw a graph that shows 'not a function'
(hint: it fails the vertical line test!)
Any graph that fails the vertical line test!