Roots Reminder

Front

What is the radical symbol?

Back

The radical symbol (√) is used to indicate the square root or nth root of a number.

Front

What is a perfect square?

Back

A perfect square is a number that can be expressed as the square of an integer. For example, 196 is a perfect square because it equals 14².

Front

Simplify: √196

Back

14

Front

What is the value of √25?

Back

5

Front

Which two whole numbers does √200 fall between?

Back

14 and 15

Front

What do we call the number under the radical symbol?

Back

The radicand.

Front

What is the index in a radical expression?

Back

The index indicates the degree of the root. For example, in the cube root (³√), the index is 3.

Front

Simplify: √(a²)

Back

a (for a ≥ 0)

Front

What is the cube root of 27?

Back

3

Front

Is 50 a perfect square?

Back

No, 50 is not a perfect square.