Vocabulary
Which operation does the word “sum” indicate?
add
Which operation does the word “difference” indicate?
subtract
Write the following inequality symbols: Less than, Greater than, Less than or Equal to, Greater than or Equal to
(Your teacher will draw them)
What is another word for "average"?
mean
Ella caught 5 fish. The lengths, in inches, of each fish are listed.
8, 12, 8, 20, 15
What is the range?
12 inches
Which operation does the word “product” indicate?
multiply
Which operation does the word “quotient” indicate?
divide
What is an equivalent expression for 10(8 + y)?
80 + 10y
What are 3 measures of center?
mean, median, mode
Ella caught 5 fish. The lengths, in inches, of each fish are listed.
8, 12, 8, 20, 15
What is the mode?
8 inches
What does it mean to distribute?
give out evenly
What does it mean to substitute?
to replace
If y = 8, then what is the value of 9 • y?
72
What are 2 measures of variation?
range, mean absolute deviation (M.A.D.)
Is this a statistical or non-statistical question?
Who was the first president?
Non-statistical
What does it mean to use the inverse operation to solve an equation?
to use the opposite operation
What does it mean to isolate the variable?
to get the variable by itself on one side of the equation
For the equation y = 3x − 4 , what is y when x = 10?
26
Ella caught 5 fish. The lengths, in inches, of each fish are listed. 8, 12, 8, 20, 15
What is the mean size fish?
12.6 inches
Is this a statistical or non-statistical question?
How many students are absent from school each day?
Statistical
What is the order of operations?
G- Grouping symbols
E- Exponents
M/D - Multiplication or Division
A/S - Addition or Subtraction
To find 25 − 5 + 20 ÷ 4 • 3, which operation is done first?
Division
Using {1, 2, 3, 4} as the replacement set, what is the solution to 7 • y = 21?
y = 3
Ella caught 5 fish. The lengths, in inches, of each fish are listed.
8, 12, 8, 20, 15
What is the median size fish?
12 inches
How do you put an exponent into a scientific calculator? How do you put a fraction into a scientific calculator?
4 ^ 5 is the same as 45
1 abc 2 is the same as 1/2