7th Grade MATH STAAR PRACTICE TEST #1

Front

What is the constant of proportionality?

Back

The constant of proportionality is the constant value (k) that relates two proportional quantities, often represented as y = kx.

Front

What happens to the inequality sign when you multiply or divide by a negative number?

Back

When you multiply or divide both sides of an inequality by a negative number, you must flip the inequality sign.

Front

How do you calculate the volume of a rectangular prism?

Back

Volume = length × width × height.

Front

What is a random sample?

Back

A random sample is a subset of individuals chosen from a larger set, where each individual has an equal chance of being selected.

Front

How do you estimate a population based on a sample?

Back

To estimate a population, you can use the proportion from the sample and apply it to the total population size.

Front

If a scuba diver is 25⅔ feet below the surface and descends 5½ feet, how deep is the diver now?

Back

The diver is now 31⅙ feet below the surface.

Front

What is the formula for finding the area of a triangle?

Back

Area = 1/2 × base × height.

Front

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

Back

Mean is the average, median is the middle value when data is ordered, and mode is the most frequently occurring value.

Front

What is an inequality?

Back

An inequality is a mathematical statement that compares two expressions, showing that one is less than, greater than, or not equal to the other.

Front

How do you find the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).