Operations with Radicals: Addition and Subtraction Techniques

What is the first step when adding or subtracting radicals?

• Find the square root of each radical

• Divide the radicals

• Identify like radicals

• Multiply the radicals

How do you add 4√2 and 3√2?

• 1√2

• 7√2

• 7√4

• 12√2

Which of the following pairs are like radicals?

• 5√3 and 7√2

• 4√5 and 4√5

• 6√2 and 6√3

• 2√7 and 3√8

What should you do if you encounter unlike radicals?

• Multiply them

• Simplify them first

• Ignore them

• Add them directly

Simplify 2√27 + √3.

• 8√3

• 7√3

• 6√3 + √3

• 3√3 + √3

What is the result of 5√11 - √11?

• 4√11

• 5√11

• √11

• 6√11

How do you simplify 2√48 - 3√3?

• 8√3 - 3√3

• 6√3

• 7√3

• 5√3

What is the simplified form of √75?

• 5√3

• 4√3

• 3√5

• 2√5

When is a number considered rational?

• When it has a radical

• When it is a decimal

• When the radical is simplified

• When the square root is gone after simplifying

Which of the following is an irrational number?

• √16

• 4

• 2

• √8

Tags

CCSS.8.NS.A.1