Unit 1
How do you calculate the range in a set of numbers?
Subtract the lowest term from the highest term
(highest - lowest)
Multiplication
Maily earns €65 per hour at her job. If she works 40 hours in a week, how much does she earn in one week?
€2600
What is the top number in a fraction called?
The numerator
How do you find the mean of a set of numbers?
Add together all terms, then divide by the number of terms
Evita counts the number of kilometres they run every day for a week:
4, 3, 6, 0, 2, 3, 10
What was their modal run distance?
3 km
What is the highest common factor of 72 and 48?
24 (24 x 3 and 24 x 2)
If y = mx + c, find the value of y when:
m = -1, x = 0, c = 2
y = 2
Draw a square, then color in 25% of it
Multiply by 100%
Dario scored the following number of points in a season of basketball games:
3, 7, 8, 7, 6, 7, 6, 4
What is the mean number of points that he scored per game?
6 points
Why are square numbers called "square" numbers?
Because x2 represents the area os a square with side length x
In the equation y = x / 2, what do we call the number 2?
The divisor / the denominator
Express 72% as a fraction in simplest form
18/25
Evaluate 3 1/2 + 2 5/6
6 1/3
Students in a class have names with the following number of letters:
3, 4, 5, 7, 2, 6, 5, 8
What is the mean name length for students in this class?
5 letters
Find the least common multiple of 30 and 36
180 (30 x 6 and 36 x 5)
Simplify the expression by collecting like terms:
r2 + 5r - 3r2 - 2r
-2r2 + 3r
14/15
Draw a circle, then color in 40% of it
In the 2024 Olympics, Maria Paz threw the following distances in the shot put event:
21.22 m, 23.21 m, 20.78 m, 20.50 m, 20.29 m
What was her mean throwing distance?
21.2 m
Work out:
(1 - 2 x 4)3
Find the value of 3x(5 - 2x) when x = 5
-75
A bookmark has a width of 1 1/2 cm,
and a height of 8 2/3 cm.
What is the surface area of the bookmark?
13 cm2
0.857142...