Estimating Square Roots to the Nearest Tenth

What is the first step in estimating the square root of a number to the nearest 10th?

• Divide the number by 2.

• Round the number to the nearest whole number.

• Find the two whole numbers it lies between.

• Find the exact square root.

Tags

CCSS.8.NS.A.2

Between which two whole numbers does the square root of 86 lie?

• 8 and 9

• 9 and 10

• 10 and 11

• 7 and 8

Tags

CCSS.8.NS.A.2

What is the halfway point between 9 and 10?

• 9.4

• 9.5

• 9.2

• 9.3

How many spaces are there between 81 and 100?

• 20

• 18

• 19

• 21

Tags

CCSS.1.NBT.C.5

What is the approximate halfway point between the square roots of 81 and 100?

• Square root of 95

• Square root of 91

• Square root of 90

• Square root of 85

Tags

CCSS.8.NS.A.2

What is the next step after finding the halfway point between 9 and 10?

• Find the exact square root.

• Divide by 2.

• Zoom in further to refine the estimate.

• Round to the nearest whole number.

Tags

CCSS.8.NS.A.2

What is the halfway point between 9 and 9.5?

• 9.1

• 9.2

• 9.25

• 9.3

Tags

CCSS.5.NBT.B.7

What is the final estimate for the square root of 86?

• 9.3

• 9.25

• 9.2

• 9.1

Tags

CCSS.8.NS.A.2

What is the actual square root of 86 rounded to the nearest 10th?

• 9.25

• 9.3

• 9.27

• 9.2

Tags

CCSS.8.NS.A.2

How accurate was the estimation compared to the actual square root of 86?

• Completely inaccurate

• Slightly accurate

• Not accurate at all

• Very accurate

Tags

CCSS.8.NS.A.2