Math College Placement Practice #2

Front

What is the mode of a set of numbers?

Back

The mode is the number that appears most frequently in a data set. If there are two or more numbers that appear with the same highest frequency, the data set is multimodal.

Tags

CCSS.6.SP.A.3

Front

Calculate 10% of 75.

Back

10% of 75 is 7.5.

Tags

CCSS.6.RP.A.3C

Front

If 32 is 40% of a number, how do you find that number?

Back

To find the number, divide 32 by 0.4 (which is 40% as a decimal). The number is 80.

Tags

CCSS.6.RP.A.3C

Front

What is the result of the expression -0(2) - 0/2 - 2?

Back

The result is -2.

Tags

CCSS.7.NS.A.2C

Front

How do you find the area of a rectangle given its perimeter and the relationship between length and width?

Back

If the perimeter is 30 cm and the length is twice the width, let width = w. Then, length = 2w. The perimeter formula is 2(length + width) = 30. Solve for w to find the area.

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter P of a rectangle is given by P = 2(length + width).

Tags

CCSS.4.MD.A.3

Front

Define a rectangle.

Back

A rectangle is a quadrilateral with four right angles and opposite sides that are equal in length.

Tags

CCSS.5.G.B.4

Front

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

Back

Mean is the average of a set of numbers, median is the middle value when numbers are arranged in order, and mode is the most frequently occurring number.

Tags

CCSS.6.SP.B.5C

Front

How do you calculate the area of a rectangle?

Back

The area A of a rectangle is calculated by multiplying its length (l) by its width (w): A = l * w.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Front

What does it mean for a number to be a percentage of another number?

Back

A percentage represents a fraction of 100. To find a percentage of a number, multiply the number by the percentage (as a decimal).