STAAR 3rd grade Math review

Front

What is the measure of a right angle?

Back

90 degrees (90°)

Front

What is the measure of a straight angle?

Back

180 degrees (180°)

Front

What is the measure of an acute angle?

Back

An angle that is less than 90 degrees.

Front

What is the measure of an obtuse angle?

Back

An angle that is greater than 90 degrees but less than 180 degrees.

Front

What is the formula to find the area of a rectangle?

Back

Area = length × width.

Front

What is the formula to find the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Front

What is multiplication?

Back

Multiplication is repeated addition.

Front

What is the expression to find the total number of muffins if there are 4 shelves with 5 muffins each?

Back

4 x 5.

Front

What is the value of 5 x 5?

Back

25.

Front

What is the value of 4 + 5?

Back

9.