Surds

Simplify fully: 
√32

• 4√8
• 16√2
• 4√2
• 4√4

Simplify fully: 
√120

• 4√30
• 2√30
• 12√10
• 6√10

Simplify fully: 
√32 + 5√32

• 6√32
• 24√8
• 24√2
• 6√8

Simplify fully: 
2√45 - 5√45 + 9√16

• -9√5 + 36
• -3√45 + 144
• 6√16
• 6√106

Simplify fully: 
√216

• 2√108
• 4√54
• 6√6
• 18√6

Simplify fully: 
√32 + √12

• 4√2 +2√3
• 6√5
• √44
• 2√11

What type of number is π ?

• Rational
• Irrational

What is a rational number ?

• A rational number  is a number that cannot be written as a fraction.
• A rational number is a number that can be written as a ratio.
• A rational number cannot be a repeating  decimal.

Simplify √81

• 9
• √9
• 3√9
• can't simplify

Simplify

• √169
• 13√13
• 13
• Can't Simplify