End of the year 7th grade math (1)

Front

What is the median in a data set?

Back

The median is the middle value when the numbers are arranged in order. If there is an even number of values, the median is the average of the two middle numbers.

Front

What is the result of -20 + (-11)?

Back

-31

Front

What is the result of 18 - (-4)?

Back

22

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

What are supplementary angles?

Back

Supplementary angles are two angles whose measures add up to 180 degrees.

Front

If the ratio of tenants to cars is 3:5, how do you find the number of cars if there are 30 tenants?

Back

Set up a proportion: 3/5 = 30/x. Cross-multiply to find x, which is 50.

Front

What is a box plot?

Back

A box plot is a graphical representation of a data set that shows the median, quartiles, and outliers.

Front

How do you find the mean of a data set?

Back

Add all the numbers together and divide by the total number of values.

Front

What is the difference between positive and negative integers?

Back

Positive integers are greater than zero, while negative integers are less than zero.

Front

What is an integer?

Back

An integer is a whole number that can be positive, negative, or zero.