Year 10 Maths A Surds Revision

What is a rational number ?

• A rational number is a number that cannot be written as a ratio.

• A rational number is a number that can be written as a fraction.

• A rational number cannot be a repeating decimal.

Simplify

• √169
• 13√13
• 13
• Can't Simplify

Simplify:
√6 x √6

• √36
• 2√3
• 12
• 6

Simplify: 
√5 x √6

• 2√15
• √11
• √30
• 3√10

Tags

CCSS.HSN.RN.A.2

Simplify  √5 × √25 

• 5√5
• 10
• √125
• 5√125

Simplify

• 13√3
• 10√30
• 13√6
• 11√3

Tags

CCSS.HSN.RN.A.2

CCSS.HSN.RN.A.1

CCSS.HSA.SSE.B.3

Simplify fully: 
√216

• 2√108
• 4√54
• 6√6
• 18√6

Tags

CCSS.HSN.RN.A.2

CCSS.HSN.RN.A.1

Simplify fully: 
2√45 - 5√45 + 9√16

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

Tags

CCSS.HSN.RN.A.2

Simplify fully: 
√32 + √12

• 4√2 +2√3
• 6√5
• √44
• 2√11

Tags

CCSS.HSN.RN.A.2

Rationalise the Denominator:
³/_√5

• ^3√5/₅
• ^3√5/₂₅
• ^√5/₅
• ^√5/3

Tags

CCSS.HSN.RN.A.2

CCSS.HSN.RN.A.1