AnswersPre-Algebra - MA3119 B-CRUnit Test

Estimating and Comparing Square Roots Answers

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1
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Which statements are true? Select the two correct answers.

A
The square root of a positive number greater than 1 is less than the number.
B
The square root of a positive number is always less than half of the number itself.
C
The square root of a positive number less than 1 is less than the number.
D
The square root of a perfect square is not a whole number.
E
The square root of a positive number less than 1 is between 0 and 1.
2
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The values and are plotted on the number line.What is the approximate difference in tenths between and ?

Question illustration
A
0.2
B
0.4
C
1.5
D
1.7
3

Hassan used the iterative process to locate on the number line. Which best describes Hassan’s estimation?

Question illustration
A
Hassan is correct because
Option A
B
Hassan is correct because the point is on the middle of the number line.
C
Hassan is incorrect because is less than 0.4.
Option C
D
Hassan is incorrect because the point should be located between 0.1 and 0.2.
4

Which point best approximates?

Question illustration
A
A
B
B
C
C
D
D
5

Which two numbers does lie between on a number line?

Question illustration
A
7.7 and 7.8
B
7.8 and 7.9
C
7.9 and 8.0
D
8.0 and 8.1
6

The values and are plotted on the number line.What is the approximate difference in tenths between and ?

Question illustration
A
0.3
B
0.7
C
1.3
D
2.2
7

Four students provide the following approximations for .Anyah states that is between 0.44 and 0.45 because .Matthew states that is between 0 and 1 because .Rhoda states that is between 0.9 and 1.0 because .Ming states that is between 0.93 and 0.95 because .Which solution(s) are correct?

Question illustration
A
Anyah's only
B
Ming's only
C
Anyah’s, Matthew’s, and Rhoda’s
D
Matthew’s, Rhoda’s, and Ming’s
8

Which is the best estimate of to the nearest tenth?

Question illustration
A
6.8
B
6.9
C
7.0
D
7.1
9

Which two numbers does lie between on a number line?

Question illustration
A
11.0 and 11.1
B
11.2 and 11.3
C
11.3 and 11.4
D
11.4 and 11.5
10

Pedro, Lena, Harriet, and Yermin each plot a point to approximate .PedroLenaHarrietYerminWhose point is the best approximation of ?

Question illustration
A
Pedro
B
Lena
C
Harriet
D
Yermin

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