Math review Flashcards
1
Q
Roman numeral: M
A
1,000
2
Q
Roman numeral: D
A
500
- never written more than once
- never used to the left of a larger value
3
Q
Roman numeral: C
A
100
4
Q
Roman numeral: L
A
50
- never written more than once
- never used to the left of a larger value
5
Q
Roman numeral: X
A
10
6
Q
Roman numeral: V
A
5
- never written more than once
- never used to the left of a larger value
7
Q
Roman numeral: I
A
1 (one)
8
Q
PEMDAS
A
order of math operations
- parentheses
- exponents
- multiplication
- division
- addition
- subtraction
9
Q
order of math operations
A
PEMDAS
10
Q
calculating average speed
A
average speed = distance / time
11
Q
how do you calculate a % decrease?
A
original value - new value
___________________ X 100
original value
12
Q
calculate a % increase?
A
new value - original value
____________________ X 100
original value
13
Q
estimation
A
round numbers so there is only one nonzero digit in each number
14
Q
independent variable
A
the variable that is put into the set of data
15
Q
dependent variable
A
output based on the input
