Number
What is a prime number?
A number with exactly two factors, 1 and itself.
In a random sample, every member of the population has an ____ chance of being chosen.
Equal
L___ t___ contain the same variable (letter). For example 3y and 2y
Like terms
A fraction is part of a whole. The top number of a fraction is the n_______. The bottom number is the d_______.
Numerator. Denominator
Probabilities range from i_______ to c_____ on a probability scale.
Impossible to certain.
1, 2, 3, 6, 9, 18
Here are the heights of 9 pencils in cm:
12, 13, 10, 13, 15, 11, 12, 13, 14
What is the mode?
13cm
You s_____ an expression by collecting like terms.
Simplify
An i______ fraction has a numerator that is bigger than its denominator.
improper fraction.
There are five ice creams. One of them is strawberry. Write this as a fraction.
1/5
What is the LCM of 10 and 15?
30
Here are the heights of 9 pencils in cm:
12, 13, 10, 13, 15, 11, 12, 13, 14
What is the Range?
5cm
Simplify 3x + 5x
8x
3 3/4
Three out of six plums are rotten. Write this as a percentage.
50%
7
A d___ bar chart compares two sets of data.
Dual.
Simplify
7w + w - 10w + 2y
-2w +2y
Add together:
3/7 and 3/7
6/7
To find the probability of something NOT happening, subtract the probability of it happening from ____.
1
Write the number 56 as a product of its prime factors.
56 = 7 x 2 x 2 x 2
Which is the only average that can be used for non-numerical data?
The mode
Write an expression for 8 more than x.
x + 8
Calculate:
3/4 x 2/5
3/10 (must be simplified)
A quality control inspection of 200 watches found that 20 were faulty. Estimate the probability that a watch will be faulty.
20/200 or 1/10 or 0.1 or 10%