Vocabulary
A number or ratio expressed as a fraction of 100. It is often denoted by this sign. %
What is a Percentage?
20% of 50
What is 10?
The amount of money that you need to buy 5 pens if 3 pens cost $6
What is $10?
The amount of workers needed to make 18 chairs in 4 hours if 3 workers can make 6 chairs in 4 hours
What is 9 workers?
This type of operation is represented by "+"
What is Addition?
A deduction from the usual cost of something
What is a Discount?
25% of 200
What is 50?
The amount of hours that it will take 2 workers to finish a task if 4 workers can do the same task in 8 hours
What is 16 hours?
The amount of time it will take 6 workers to paint 200m2 if 3 workers can paint 100m2 in 5 hours
What is 5 hours?
Take away. Represented by '-'
What is Subtraction?
The fact of a variable quantity having a constant ratio to another quantity
What is Proportionality?
The number you get when you increase 80 by 25%
What is 100?
The amount of workers needed to complete a task in 6 days if 6 workers can complete the task in 12 days
What is 12 workers?
The amount of time it will take 8 workers to finish a task if 4 workers can finish a task in 10 days
What is 5 days?
'='
What is Equals (is equal to)?
A proportion between two quantities, each of which is the product of two or more, those of the first set being in their order proportional to those of the other
What is a Compound Proportion?
Fill in the blank
75 is ____% of 300
What is 25?
The amount of hours it will take 3 cars to travel 100km if 5 cars can travel 100km in 2 hours
What is 2 hours? ( The amount of cars do not affect travel time)
The distance a car will travel in 6 hours if it travels 200km in 4 hours at the same speed
What is 300 km?
"x"
What is Multiplication?