6th Vocab

Front

Perimeter of a circle

Back

Circumference

Front

Add numbers and divide by their count

Back

Average

Front

Distance across a circle

Back

Diameter

Front

Distance from the center of a circle to the outside

Back

Radius

Front

A number with only 1 and itself as factors

Back

Prime

Front

Numbers that look the same but have different signs (e.g., 3 and -3).

Back

Opposites

Front

Every even number is divisible by...

Back

2

Front

Angle between 90° and 180°

Back

Obtuse

Front

Chance of occurrence

Back

Probability

Front

Two-dimensional space inside a shape

Back

Area