7th Grade Math Review

Front

What is the greatest value among the following expressions: -3 - -6, -3 x -6, -3 + -6, -3 ÷ -6?

Back

-3 x -6

Front

If Sheila made four withdrawals of $40 each and a $156 purchase, then deposited $375, how much did her bank account change?

Back

$59 decrease

Front

What is the Mean Absolute Deviation (M.A.D.) for the data set: 14, 19, 26, 27, 39?

Back

6.8

Front

Find the median of the data set: 9, 8, 7, 11, 7, 16, 3.

Back

8

Front

Max can choose one of chicken, tofu, hard-boiled eggs, or turkey for his salad and one vegetable from sprouts, tomatoes, or olives. How many combinations can he create?

Back

12 combinations

Front

What is the definition of Mean Absolute Deviation (M.A.D.)?

Back

M.A.D. is the average of the absolute differences between each data point and the mean of the data set.

Front

How do you calculate the median of a data set?

Back

Arrange the numbers in order and find the middle value.

Front

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

Back

Area = length x width.

Front

What is the definition of a prime number?

Back

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.

Front

What is the difference between mean and median?

Back

Mean is the average of a set of numbers, while median is the middle value when the numbers are arranged in order.