Estimating Roots

Which is the best estimate of the square root of 63?

• 7.1
• 7.3
• 7.5
• 7.9

Tags

CCSS.8.NS.A.2

Which number has a square root that  is between 7 and 8?

• 48
• 81
• 60
• 36

Tags

CCSS.8.NS.A.2

Between which two whole numbers is the square root of 20?

• 5 and 6
• 10 and 2
• 4 and 5
• 3 and 4

Tags

CCSS.8.NS.A.2

Point B could represent which of the following numbers?

• √24
• √30
• √35
• √42

Tags

CCSS.8.NS.A.2

Between which two whole numbers does the √115 fall?

• 9 and 10

• 10 and 11

• 9 and 11

• 11 and 12

Tags

CCSS.8.NS.A.2

Mr. Cleaves wrote four irrational numbers on the SMART board and asked Saul to choose the number closest to 4. Which irrational number should Saul choose?

• √8
• √17
• √12
• √10

Tags

CCSS.8.NS.A.2

The area of a square is 117 square meters. Which best represents the length of a side of the square? 

• 10.8 m
• 11 m
• 10 m
• 11.2 m

Tags

CCSS.8.NS.A.2

List the following numbers from least to greatest:
-64 , 3.5 , √27 , 6.666...

• -64 , 3.5 , √27 , 6.666...
• 3.5 , √27 , 6.666..., -64
• 3.5, -64, √27, 6.666...
• 6.666, √27, -64, 3.5

Tags

CCSS.8.NS.A.2

• A
• B
• C
• D

Tags

CCSS.8.NS.A.2

Which point best represents √47?

• A
• D
• E
• F

Tags

CCSS.8.NS.A.2