Decimals
Write these decimals in order from smallest to largest: 3.46, 3.4, 3.064, 3.6
3.064, 3.4, 3.46, 3.6
The sum of all angles meeting on a straight line in degrees.
180º
Write a simplified expression for the perimeter of an equilateral triangle with side length x + 2.
3x + 6
The classification type for data involving the count of absent students in a classroom.
Discrete data
The mode of the data set: 4,7,7,8,9,10,10,10,12.
10
Work out 8.4 - 2.75.
5.65
Three angles around a point are 90º, 65º, and x. Find x.
205º
The three angles inside a triangle are xº, xº and 2xº. Write a simplified equation for xº
4x = 180º
The classification type for data involving the exact mass of an apple in grams.
Continuous data
The range of these test score: 12, 18, 25, 31, 40.
28
Work out 3.2 x 0.6.
1.92
An isosceles triangle has a vertex angle of 100º. Find the size of one base angle.
40º
The interior angles of a quadrilateral are xº, (x+10)º, (x+20)º, and (x+30)º. Write a simplified equation for x.
4x + 60 =360
The flaw present in survey options listed as 10-15, 15-20, and 20-25.
Overlapping options / options that are not mutually exclusive.
The mean average of these values: 4,6,8,12.
7.5
Work out 4.8 ÷ 0.4.
12
Two parallel lines are crossed by a transversal line. If one angle is 55º, find its corresponding angle.
55º
Solve the equation 4x + 60 = 360 to find the value of x.
x = 75
A librarian wants to know the reading habits of all 600 students in a school and surveys 50 of them. The statistical term for the entire group of 600 students.
Population
The median of this order data set: 3,6,9,12,15,18
10.5
Calculate 0.4 x 0.05 x 200.
4
Alternate angles on parallel lines are equal to each other. If one is (2x +10)º and the other is 70º, find x.
30º
Vertically opposite angles in a shape are represented by (2x+10)º and (x+40)º. Find the size of the angle in degrees.
70º
A random sample of 30 students is taken from a school of 600 students. If 12 students in the sample prefer pizza, estimate how many students in the whole school prefer pizza.
240 students
The mean of four numbers is 12. Three of the numbers are 8,14, and 15. Find the fourth number.
11