7th Grade - STAAR - Math - Review 9th - 2

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

Define a prime number.

Back

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

Tags

CCSS.4.OA.B.4

Front

What is the Pythagorean theorem?

Back

In a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides. (a² + b² = c²)

Tags

CCSS.8.G.B.8

Front

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

Back

Mean = (sum of all values) / (number of values)

Tags

CCSS.6.SP.B.5C

Front

What is the difference between the 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.

Tags

CCSS.6.SP.B.5D

CCSS.HSS.ID.A.2

Front

What is a ratio?

Back

A ratio is a comparison of two quantities by division.

Tags

CCSS.6.RP.A.1

CCSS.6.RP.A.2

Front

Define a variable in mathematics.

Back

A variable is a symbol used to represent an unknown value.

Tags

CCSS.6.EE.B.6

Front

What is the distributive property?

Back

The distributive property states that a(b + c) = ab + ac.

Tags

CCSS.6.EE.A.3

Front

How do you solve for x in the equation 2x + 3 = 11?

Back

Subtract 3 from both sides: 2x = 8. Then divide by 2: x = 4.

Tags

CCSS.7.EE.B.4A

Front

What is the greatest common factor (GCF)?

Back

The GCF is the largest positive integer that divides all the numbers in a set without leaving a remainder.