4th Grade Math Vocab Review

Front

Acute angle:

Back

Less than 90 degrees.

Front

A right angle is

Back

An angle measuring exactly 90 degrees

Front

Obtuse angle:

Back

More than 90° but less than 180°.

Front

A straight line measures

Back

Exactly 180 degrees

Front

Sum is the answer to a

Back

Addition problem

Front

Difference is the answer to a:

Back

Subtraction problem.

Front

Product is the answer to a

Back

Multiplication problem

Front

Quotient is the answer to a:

Back

Division problem

Front

Area is

Back

Length x Width

Front

Perimeter is

Back

Length + Length + Width + Width