Mixed Review Flashcard

Front

What is a proportion?

Back

A proportion is an equation that states that two ratios are equal. For example, if a/b = c/d, then a, b, c, and d are in proportion.

Front

How do you find the cost per item when given a total cost?

Back

To find the cost per item, divide the total cost by the number of items. For example, if 3 shirts cost $45, the cost per shirt is $45 ÷ 3 = $15.

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction a/b, where a and b are integers and b is not zero.

Front

How do you order rational numbers from least to greatest?

Back

To order rational numbers, convert them to a common denominator or decimal form, then compare their values.

Front

What is the product of two numbers?

Back

The product is the result of multiplying two numbers together. For example, the product of 23.2 and 0.4 is 9.28.

Front

How do you convert ounces to pounds?

Back

To convert ounces to pounds, divide the number of ounces by 16, since 1 pound equals 16 ounces.

Front

What is the opposite of a number on the number line?

Back

The opposite of a number is its reflection across zero. For example, the opposite of 3 is -3.

Front

What is the formula for finding the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width (Area = length × width).

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents a number in mathematical expressions or equations.

Front

What is the difference between a mean and a median?

Back

The mean is the average of a set of numbers, calculated by adding them together and dividing by the count. The median is the middle number when the numbers are arranged in order.