Calculations Flashcards
1
Q
How do you calculate ratios
A
Find the lowest common denominator
e.g. 65:25
13:5
2
Q
How do you calculate percentage
A
Your number
—————– x100
Total
3
Q
How do you calculate percentage change
A
Change
———- x 100
Original
4
Q
How do you calculate the average
A
Total/Number of numbers you added up
5
Q
How do you calculate the average change over time
A
Total change/Total time
6
Q
How do you describe relationships from a graph/table
A
As INDEPENDENT VARIABLE increases from _____ to _____, the measured DEPENDENT VARIABLE increases/decreases from _____ to ________/stays constant
7
Q
How do you calculate how many times greater
A
Divided the bigger number by the smaller number
8
Q
How do you measure the rate
A
Change/time
