Percentage Flashcard(12/3/24)

Front

What is a percentage?

Back

A percentage is a way of expressing a number as a fraction of 100. It is often used to compare proportions.

Front

How do you calculate 60% of a number?

Back

To calculate 60% of a number, multiply the number by 0.60 (or 60/100). For example, 60% of 25 is 25 x 0.60 = 15.

Front

What is the formula to find the percentage of a number?

Back

The formula to find the percentage of a number is: (Part/Whole) x 100 = Percentage.

Front

If 60% of a group is girls, how do you find the number of boys?

Back

To find the number of boys, first calculate the number of girls (60% of total), then subtract that from the total number of students.

Front

What is 20% of 300?

Back

20% of 300 is calculated as 300 x 0.20 = 60.

Front

How do you find what percent one number is of another?

Back

To find what percent one number is of another, use the formula: (Part/Whole) x 100.

Front

What is the relationship between percentages and fractions?

Back

Percentages can be converted to fractions by placing the percentage over 100 and simplifying. For example, 25% = 25/100 = 1/4.

Front

If 12 items represent 60% of a total, how do you find the total number of items?

Back

To find the total, divide the number of items by the percentage in decimal form: Total = 12 / 0.60 = 20.

Front

What does it mean if a number is increased by a percentage?

Back

Increasing a number by a percentage means adding that percentage of the number to itself. For example, increasing 100 by 20% means adding 20 (which is 20% of 100) to 100, resulting in 120.

Front

What is the percentage increase formula?

Back

The percentage increase formula is: ((New Value - Original Value) / Original Value) x 100.