math test study cards Flashcards
What is a percent?
A percent is a ratio that compares a number to 100.
Convert 25% to a fraction.
25% is equivalent to 1/4.
True or False: 50% is equal to 0.5.
True.
What is 10% of 200?
10% of 200 is 20.
Fill in the blank: To find the percent of a number, you multiply the number by ____.
the percent expressed as a decimal.
What is the formula to find the percent?
The formula is (part/whole) × 100.
Convert 75% to a decimal.
75% is equivalent to 0.75.
If a shirt originally costs $40 and is on sale for 30% off, what is the sale price?
$28.
True or False: 0% means there is no amount.
True.
What does it mean to increase a quantity by a percent?
It means to add that percent of the quantity to the original amount.
What is 15% of 60?
15% of 60 is 9.
Fill in the blank: To convert a fraction to a percent, you multiply by ____.
100.
What is the percent increase from 50 to 75?
The percent increase is 50%.
If you have 120 students and 30% are girls, how many girls are there?
There are 36 girls.
True or False: A percent can be greater than 100.
True.
What is the percent decrease if a price goes from $80 to $60?
The percent decrease is 25%.
Convert 0.2 to a percent.
0.2 is equivalent to 20%.
What is 200% of 50?
200% of 50 is 100.
Fill in the blank: To find the whole when given a part and a percent, you divide the part by ____.
the percent expressed as a decimal.
What is the formula to calculate the part when you know the whole and the percent?
The formula is (whole × percent).
If a population of a town increases from 1,000 to 1,200, what is the percent increase?
The percent increase is 20%.
