4th Math STAAR Review

Front

How do you find the number of people working on each floor of a building?

Back

Divide the total number of people by the number of floors. For example, if there are 1,092 people and 4 floors, then 1,092 ÷ 4 = 273 people per floor.

Front

What is an obtuse triangle?

Back

An obtuse triangle is a triangle that has one angle measuring more than 90 degrees.

Front

How do you calculate total earnings from multiple jobs?

Back

Multiply the number of jobs by the payment per job. For example, if Abby raked leaves 23 times and earned $15 each time, then 23 × 15 = $345.

Front

What is expanded form in mathematics?

Back

Expanded form is a way to write numbers by showing the value of each digit. For example, $14.83 can be written as 10 + 4 + 0.8 + 0.03.

Front

What is a data set?

Back

A data set is a collection of numbers or values that can be analyzed. For example, the data set 17, 18, 19, 21, 21, 24, 26, 26, 27, 29, 30, 31 contains numbers that can be used for statistical analysis.

Front

How do you classify triangles based on their angles?

Back

Triangles can be classified as acute (all angles < 90°), right (one angle = 90°), or obtuse (one angle > 90°).

Front

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

Back

The area of a triangle is calculated using the formula: Area = 1/2 × base × height.

Front

What does it mean to round a number?

Back

Rounding a number means adjusting it to the nearest specified value, such as the nearest ten or hundred.

Front

How do you find the average of a data set?

Back

To find the average, add all the numbers together and then divide by the total number of values.

Front

What is a fraction?

Back

A fraction represents a part of a whole and is written as a/b, where 'a' is the numerator and 'b' is the denominator.