AnswersSSCR 26 Math Essentials ARational Numbers

Rational Numbers Answers

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1
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Which point represents the opposite of –2?

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A
A
B
B
C
C
D
D
2
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A diver descends to a depth of –25.6 feet relative to sea level. How many feet must the diver ascend to reach sea level?

A
0.6 feet
B
25 feet
C
25.6 feet
D
256 feet
3

A recipe shows that the yeast needed for a bread recipe is ounces. Which of the following decimals is equivalent to this number?

Question illustration
A
2.13
Option A
B
2.3
Option B
C
2.ModifyingAbove 3 with bar
Option C
D
3.2
Option D
4

Which statement about rational numbers is true?

A
All rational numbers are fractions.
B
Rational numbers never have repeating decimals.
C
Some integers are not rational numbers.
D
All fractions containing integers are rational numbers.
5

Renaldo will write as a decimal. Which of the following methods should he use?

Question illustration
A
Multiply the fraction by to get a denominator of 100 and then write the numerator as hundredths using a decimal point.
Option A
B
Multiply the fraction by to get a denominator of 100 and then write the numerator as hundredths using a decimal point.
Option B
C
Multiply the fraction by to get a numerator of 100 and then write the denominator as hundredths using a decimal point.
Option C
D
Multiply the fraction by 33.3 to get a numerator of 100 and then write the denominator as hundredths using a decimal point.
6

Which point on the number line could represent ?

Question illustration
A
A
B
B
C
C
D
D
7

Which two points on the number line represent numbers that can be combined to make zero?

Question illustration
A
B and D
B
A and B
C
C and D
D
A and C
8

Which number is the additive inverse of ?

Question illustration
A
Negative 4 and one-fourth
Option A
B
Negative one-fourth
Option B
C
One-fourth
Option C
D
4 and one-fourth
Option D
9

George is comparing two different phones. The screen of phone A has a width of 5.3 cm. The width of the screen on phone B is cm. Which statement explains which phone has the wider screen?

Question illustration
A
The screens have the same width.
B
Screen A is wider, because .
Option B
C
Screen B is wider, because .
Option C
D
Screen B is wider, because .
Option D
10

The diameter of a regulation soccer ball is about inches. This number was graphed on a number line. Which point could be the point representing the graph of the diameter of the ball?

Question illustration
A
A
B
B
C
C
D
D

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