7th Grade Math Review

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the rise over run (change in y over change in x).

Front

How do you calculate the mean of a set of numbers?

Back

To calculate the mean, add all the numbers together and then divide by the total count of the numbers.

Front

If Tim buys 12 donuts for $9.96, how do you find the cost per donut?

Back

Divide the total cost by the number of donuts: $9.96 ÷ 12 = $0.83 per donut.

Front

What is a proportion in mathematics?

Back

A proportion is an equation that states that two ratios are equal.

Front

What is the formula for the area of a circle?

Back

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What is the difference between mean, median, and mode?

Back

Mean is the average, median is the middle value when numbers are sorted, and mode is the most frequently occurring number.

Front

How do you solve a simple equation like 2x + 3 = 7?

Back

Subtract 3 from both sides to get 2x = 4, then divide by 2 to find x = 2.

Front

What is the Pythagorean theorem?

Back

Front

How do you convert a fraction to a decimal?

Back

Divide the numerator by the denominator.