STAAR Math Review

Front

What is an angle?

Back

An angle is formed by two rays that share a common endpoint, called the vertex. It is measured in degrees.

Front

What is expanded notation?

Back

Expanded notation is a way to write numbers that shows the value of each digit. For example, 345 can be written as (3 x 100) + (4 x 10) + (5 x 1).

Front

How do you calculate change from a purchase?

Back

To calculate change, subtract the total cost of the items from the amount paid. For example, if you pay $20 for items costing $10.77, the change is $20 - $10.77 = $9.23.

Front

What is standard form in mathematics?

Back

Standard form is a way of writing numbers using digits. For example, the number 8,703.21 is in standard form.

Front

How do you convert minutes into hours and minutes?

Back

To convert minutes into hours and minutes, divide the total minutes by 60. The quotient is the hours, and the remainder is the minutes.

Front

What is the formula for finding the total cost of multiple items?

Back

The total cost can be found by multiplying the price of one item by the number of items and then adding any additional costs.

Front

What does it mean to find the measure of an angle?

Back

Finding the measure of an angle means determining how many degrees it contains, which can be done using a protractor.

Front

What is a vertex in geometry?

Back

A vertex is the point where two lines or rays meet to form an angle.

Front

How do you find the start time of an event given the end time and duration?

Back

To find the start time, subtract the duration from the end time. For example, if a movie ends at 4:15 PM and lasts 127 minutes, subtract 127 minutes to find the start time.

Front

What is a ray in geometry?

Back

A ray is a part of a line that starts at a point and extends infinitely in one direction.